Thomas Vaughan
Graduate student (PhD)
School of Computing
Queen's University
Thomas Vaughan is a doctoral student in Computer Science from Queen's University in Kingston, Ontario, Canada. He focuses on the translation of software and hardware to clinical practice. He is currently working with researchers at Kingston General Hospital to improve multiple aspects of breast brachytherapy, including the quality of needle implant insertions, and catheter path tracking.
His goal is to promote reproducible research in computer algorithms by publishing source code and data wherever possible. He hopes that this approach will make published computer algorithms more accessible. Other researchers would not need to invest time in reimplementing and testing algorithms, and there is no risk that there will be mistakes during the reimplementation phase.
Gauvin, Gabrielle; Yeo, Caitlin T; Ungi, Tamas; Merchant, Shaila; Lasso, Andras; Jabs, Doris; Vaughan, Thomas; Rudan, John; Walker, Ross; Fichtinger, Gabor; Engel, C. Jay
Real-time electromagnetic navigation for breast-conserving surgery using NaviKnife technology: A matched case-control study Journal Article
In: The Breast Journal, vol. 26, no. 3, pp. 399-405, 2020.
@article{Gauvin2019,
title = {Real-time electromagnetic navigation for breast-conserving surgery using NaviKnife technology: A matched case-control study},
author = {Gabrielle Gauvin and Caitlin T Yeo and Tamas Ungi and Shaila Merchant and Andras Lasso and Doris Jabs and Thomas Vaughan and John Rudan and Ross Walker and Gabor Fichtinger and C. Jay Engel},
doi = {10.1111/tbj.13480},
year = {2020},
date = {2020-09-01},
urldate = {2020-09-01},
journal = {The Breast Journal},
volume = {26},
number = {3},
pages = {399-405},
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pubstate = {published},
tppubtype = {article}
}
Brastianos, Harry; Janssen, Natasja; Akingbade, Aquila; Olding, Tim; Vaughan, Thomas; Ungi, Tamas; Lasso, Andras; Westerland, Mary; Joshi, Chandra; Korzeniowski, Martin; Fichtinger, Gabor; Falkson, Conrad
91: Use of Electromagnetic Tracking Technology to Reconstruct Catheter Paths in Breast Brachytherapy-A Pilot Study Journal Article
In: Radiotherapy and Oncology, vol. 150, pp. S41, 2020.
@article{fichtinger2020t,
title = {91: Use of Electromagnetic Tracking Technology to Reconstruct Catheter Paths in Breast Brachytherapy-A Pilot Study},
author = {Harry Brastianos and Natasja Janssen and Aquila Akingbade and Tim Olding and Thomas Vaughan and Tamas Ungi and Andras Lasso and Mary Westerland and Chandra Joshi and Martin Korzeniowski and Gabor Fichtinger and Conrad Falkson},
url = {https://scholar.google.com/scholar?cluster=9660613250415496944&hl=en&oi=scholarr},
year = {2020},
date = {2020-01-01},
journal = {Radiotherapy and Oncology},
volume = {150},
pages = {S41},
publisher = {Elsevier},
abstract = {Conclusions: The combined modality treatment factors and outcomes are comparable to the results of ASCENDE-RT and remain an effective treatment option for IR and HR prostate cancer. Higher GGG, HRF, PPC are potentially associated with worse outcomes. People who had early relapse had worse OS as demonstrated by ASCENDE-RT.},
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Conclusions: The combined modality treatment factors and outcomes are comparable to the results of ASCENDE-RT and remain an effective treatment option for IR and HR prostate cancer. Higher GGG, HRF, PPC are potentially associated with worse outcomes. People who had early relapse had worse OS as demonstrated by ASCENDE-RT.
Janssen, Natasja NY; Brastianos, Harry; Akingbade, Aquila; Olding, Tim; Vaughan, Thomas; Ungi, Tamas; Lasso, Andras; Joshi, Chandra; Korzeniowski, Martin; Falkson, Conrad; Fichtinger, Gabor
Electromagnetic (EM) catheter path tracking in ultrasound-guided brachytherapy of the breast Journal Article
In: International journal of computer assisted radiology and surgery, vol. 15, pp. 1645-1652, 2020.
@article{fichtinger2020j,
title = {Electromagnetic (EM) catheter path tracking in ultrasound-guided brachytherapy of the breast},
author = {Natasja NY Janssen and Harry Brastianos and Aquila Akingbade and Tim Olding and Thomas Vaughan and Tamas Ungi and Andras Lasso and Chandra Joshi and Martin Korzeniowski and Conrad Falkson and Gabor Fichtinger},
url = {https://link.springer.com/article/10.1007/s11548-020-02233-9},
year = {2020},
date = {2020-01-01},
journal = {International journal of computer assisted radiology and surgery},
volume = {15},
pages = {1645-1652},
publisher = {Springer International Publishing},
abstract = {Purpose
To evaluate a novel navigation system for breast brachytherapy, based on ultrasound (US)-guided catheter needle implantations followed by electromagnetic (EM) tracking of catheter paths.
Methods
Breast phantoms were produced, containing US–visible tumors. Ultrasound was used to localize the tumor pose and volume within the phantom, followed by planning an optimal catheter pattern through the tumor using navigation software. An electromagnetic (EM)-tracked catheter needle was used to insert the catheters in the desired pattern. The inserted catheters were visualized on a post-implant CT, serving as ground truth. Electromagnetic (EM) tracking and reconstruction of the inserted catheter paths were performed by pulling a flexible EM guidewire through each catheter, performed in two clinical brachytherapy suites. The accuracy of EM catheter tracking was evaluated by calculating the Hausdorff …},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Purpose
To evaluate a novel navigation system for breast brachytherapy, based on ultrasound (US)-guided catheter needle implantations followed by electromagnetic (EM) tracking of catheter paths.
Methods
Breast phantoms were produced, containing US–visible tumors. Ultrasound was used to localize the tumor pose and volume within the phantom, followed by planning an optimal catheter pattern through the tumor using navigation software. An electromagnetic (EM)-tracked catheter needle was used to insert the catheters in the desired pattern. The inserted catheters were visualized on a post-implant CT, serving as ground truth. Electromagnetic (EM) tracking and reconstruction of the inserted catheter paths were performed by pulling a flexible EM guidewire through each catheter, performed in two clinical brachytherapy suites. The accuracy of EM catheter tracking was evaluated by calculating the Hausdorff …
To evaluate a novel navigation system for breast brachytherapy, based on ultrasound (US)-guided catheter needle implantations followed by electromagnetic (EM) tracking of catheter paths.
Methods
Breast phantoms were produced, containing US–visible tumors. Ultrasound was used to localize the tumor pose and volume within the phantom, followed by planning an optimal catheter pattern through the tumor using navigation software. An electromagnetic (EM)-tracked catheter needle was used to insert the catheters in the desired pattern. The inserted catheters were visualized on a post-implant CT, serving as ground truth. Electromagnetic (EM) tracking and reconstruction of the inserted catheter paths were performed by pulling a flexible EM guidewire through each catheter, performed in two clinical brachytherapy suites. The accuracy of EM catheter tracking was evaluated by calculating the Hausdorff …
Gauvin, Gabrielle; Yeo, Caitlin T; Ungi, Tamas; Merchant, Shaila; Lasso, Andras; Jabs, Doris; Vaughan, Thomas; Rudan, John F; Walker, Ross; Fichtinger, Gabor; Engel, Cecil Jay
Real‐time electromagnetic navigation for breast‐conserving surgery using NaviKnife technology: A matched case‐control study Journal Article
In: The breast journal, vol. 26, iss. 3, pp. 399-405, 2020.
@article{fichtinger2020c,
title = {Real‐time electromagnetic navigation for breast‐conserving surgery using NaviKnife technology: A matched case‐control study},
author = {Gabrielle Gauvin and Caitlin T Yeo and Tamas Ungi and Shaila Merchant and Andras Lasso and Doris Jabs and Thomas Vaughan and John F Rudan and Ross Walker and Gabor Fichtinger and Cecil Jay Engel},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/tbj.13480},
year = {2020},
date = {2020-01-01},
journal = {The breast journal},
volume = {26},
issue = {3},
pages = {399-405},
abstract = {Breast‐conserving surgery (BCS) is a mainstay in breast cancer treatment. For nonpalpable breast cancers, current strategies have limited accuracy, contributing to high positive margin rates. We developed NaviKnife, a surgical navigation system based on real‐time electromagnetic (EM) tracking. The goal of this study was to confirm the feasibility of intraoperative EM navigation in patients with nonpalpable breast cancer and to assess the potential value of surgical navigation. We recruited 40 patients with ultrasound visible, single, nonpalpable lesions, undergoing BCS. Feasibility was assessed by equipment functionality and sterility, acceptable duration of the operation, and surgeon feedback. Secondary outcomes included specimen volume, positive margin rate, and reoperation outcomes. Study patients were compared to a control group by a matched case‐control analysis. There was no equipment failure or …},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Breast‐conserving surgery (BCS) is a mainstay in breast cancer treatment. For nonpalpable breast cancers, current strategies have limited accuracy, contributing to high positive margin rates. We developed NaviKnife, a surgical navigation system based on real‐time electromagnetic (EM) tracking. The goal of this study was to confirm the feasibility of intraoperative EM navigation in patients with nonpalpable breast cancer and to assess the potential value of surgical navigation. We recruited 40 patients with ultrasound visible, single, nonpalpable lesions, undergoing BCS. Feasibility was assessed by equipment functionality and sterility, acceptable duration of the operation, and surgeon feedback. Secondary outcomes included specimen volume, positive margin rate, and reoperation outcomes. Study patients were compared to a control group by a matched case‐control analysis. There was no equipment failure or …
Vaughan, Thomas; Brastianos, H; Ungi, Tamas; Lasso, Andras; Falkson, Conrad; Fichtinger, Gabor
Needle Navigation and Catheter Reconstruction for Breast Brachytherapy Using Open Source Software Journal Article
In: Acta Polytechnica Hungarica, vol. 16, no. 8, pp. 99-118, 2019.
@article{Vaughan2019a,
title = {Needle Navigation and Catheter Reconstruction for Breast Brachytherapy Using Open Source Software},
author = {Thomas Vaughan and H Brastianos and Tamas Ungi and Andras Lasso and Conrad Falkson and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Vaughan2019a_0.pdf},
year = {2019},
date = {2019-09-01},
urldate = {2019-09-01},
journal = {Acta Polytechnica Hungarica},
volume = {16},
number = {8},
pages = {99-118},
abstract = {<p>\emph{Abstract: Interstitial breast brachytherapy is a method to deliver radiation therapy directly to the site of cancer. It is a challenging procedure because of issues in localizing the seroma, needles, and catheters within the soft tissue. In this paper we present two open-source technologies based on electromagnetic tracking: a navigation system to help target needles using a tracked needle guide, and software for electromagnetic reconstruction of catheter paths. These technologies were validated phantom studies. We found that the navigation system helped a radiation oncologist to target needles more accurately than under ultrasound guidance (60 needles under each condition, 3.8 vs 3.3 mm placement error},
keywords = {},
pubstate = {published},
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<p>Abstract: Interstitial breast brachytherapy is a method to deliver radiation therapy directly to the site of cancer. It is a challenging procedure because of issues in localizing the seroma, needles, and catheters within the soft tissue. In this paper we present two open-source technologies based on electromagnetic tracking: a navigation system to help target needles using a tracked needle guide, and software for electromagnetic reconstruction of catheter paths. These technologies were validated phantom studies. We found that the navigation system helped a radiation oncologist to target needles more accurately than under ultrasound guidance (60 needles under each condition, 3.8 vs 3.3 mm placement error
Connolly, Laura; Ungi, Tamas; Lasso, Andras; Vaughan, Thomas; Asselin, Mark; Mousavi, Parvin; Yam, Scott; Fichtinger, Gabor
Mechanically-Controlled Spectroscopic Imaging for Tissue Classification Conference
SPIE Medical Imaging 2019: Image-Guided Procedures, Robotic Interventions, and Modeling, vol. 10951, San Diego, California, 2019.
@conference{Connolly2019a,
title = {Mechanically-Controlled Spectroscopic Imaging for Tissue Classification},
author = {Laura Connolly and Tamas Ungi and Andras Lasso and Thomas Vaughan and Mark Asselin and Parvin Mousavi and Scott Yam and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Connolly2019a_3.pdf},
doi = {https://doi.org/10.1117/12.2512481},
year = {2019},
date = {2019-03-01},
urldate = {2019-03-01},
booktitle = {SPIE Medical Imaging 2019: Image-Guided Procedures, Robotic Interventions, and Modeling},
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Lia, H.; Baum, Zachary M C; Vaughan, Thomas; Ungi, Tamas; McGregor, T.; Fichtinger, Gabor
Usability and accuracy of an electromagnetically tracked partial nephrectomy navigation system Conference
17th Annual Imaging Network of Ontario Symposium (ImNO), 2019.
@conference{Lia2019a,
title = {Usability and accuracy of an electromagnetically tracked partial nephrectomy navigation system},
author = {H. Lia and Zachary M C Baum and Thomas Vaughan and Tamas Ungi and T. McGregor and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Lia2019a.pdf},
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Lia, Hillary; Baum, Zachary; Vaughan, Thomas; Ungi, Tamas; McGregor, Thomas; Fichtinger, Gabor
Electromagnetically tracked partial nephrectomy navigation: demonstration of concept Journal Article
In: vol. 10951, pp. 763-769, 2019.
@article{fichtinger2019o,
title = {Electromagnetically tracked partial nephrectomy navigation: demonstration of concept},
author = {Hillary Lia and Zachary Baum and Thomas Vaughan and Tamas Ungi and Thomas McGregor and Gabor Fichtinger},
url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10951/109512W/Electromagnetically-tracked-partial-nephrectomy-navigation-demonstration-of-concept/10.1117/12.2513565.short},
year = {2019},
date = {2019-01-01},
volume = {10951},
pages = {763-769},
publisher = {SPIE},
abstract = {PURPOSE
Partial nephrectomy is the preferred method for managing small renal masses. This procedure has significant advantages over radical nephrectomy. However, partial nephrectomy is under-used due to its difficulty. We propose a navigation system for laparoscopic partial nephrectomy. In this study, we evaluate the usability and accuracy of the navigation system.
METHODS
An electromagnetically tracked navigation system for partial nephrectomy was developed. This system tracks the positions of the laparoscopic scissors, ultrasound probe, tumor, and calyces and vasculature. Phantom kidneys were created using mixtures of plastisol and cellulose. To test the system, the navigation display quality was measured through measurement of lag and frames per second displayed. The accuracy of the system was determined through fiducial registration. Finally, a study consisting of ten participants was …},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
PURPOSE
Partial nephrectomy is the preferred method for managing small renal masses. This procedure has significant advantages over radical nephrectomy. However, partial nephrectomy is under-used due to its difficulty. We propose a navigation system for laparoscopic partial nephrectomy. In this study, we evaluate the usability and accuracy of the navigation system.
METHODS
An electromagnetically tracked navigation system for partial nephrectomy was developed. This system tracks the positions of the laparoscopic scissors, ultrasound probe, tumor, and calyces and vasculature. Phantom kidneys were created using mixtures of plastisol and cellulose. To test the system, the navigation display quality was measured through measurement of lag and frames per second displayed. The accuracy of the system was determined through fiducial registration. Finally, a study consisting of ten participants was …
Partial nephrectomy is the preferred method for managing small renal masses. This procedure has significant advantages over radical nephrectomy. However, partial nephrectomy is under-used due to its difficulty. We propose a navigation system for laparoscopic partial nephrectomy. In this study, we evaluate the usability and accuracy of the navigation system.
METHODS
An electromagnetically tracked navigation system for partial nephrectomy was developed. This system tracks the positions of the laparoscopic scissors, ultrasound probe, tumor, and calyces and vasculature. Phantom kidneys were created using mixtures of plastisol and cellulose. To test the system, the navigation display quality was measured through measurement of lag and frames per second displayed. The accuracy of the system was determined through fiducial registration. Finally, a study consisting of ten participants was …
Connolly, Laura; Ungi, Tamas; Lasso, Andras; Vaughan, Thomas; Asselin, Mark; Mousavi, Parvin; Yam, Scott; Fichtinger, Gabor
Mechanically controlled spectroscopic imaging for tissue classification Journal Article
In: vol. 10951, pp. 632-640, 2019.
@article{fichtinger2019n,
title = {Mechanically controlled spectroscopic imaging for tissue classification},
author = {Laura Connolly and Tamas Ungi and Andras Lasso and Thomas Vaughan and Mark Asselin and Parvin Mousavi and Scott Yam and Gabor Fichtinger},
url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10951/109512E/Mechanically-controlled-spectroscopic-imaging-for-tissue-classification/10.1117/12.2512481.short},
year = {2019},
date = {2019-01-01},
volume = {10951},
pages = {632-640},
publisher = {SPIE},
abstract = {PURPOSE
Raman Spectroscopy is amongst several optical imaging techniques that have the ability to characterize tissue non-invasively. To use these technologies for intraoperative tissue classification, fast and efficient analysis of optical data is required with minimal operator intervention. Additionally, there is a need for a reliable database of optical signatures to account for variable conditions. We developed a software system with an inexpensive, flexible mechanical framework to facilitate automated scanning of tissue and validate spectroscopic scans with histologic ground truths. This system will be used, in the future, to train a machine learning algorithm to distinguish between different tissue types using Raman Spectroscopy.
METHODS
A sample of chicken breast tissue is mounted to a microscope slide following a biopsy of fresh frozen tissue. Landmarks for registration and evaluation are marked on the …},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
PURPOSE
Raman Spectroscopy is amongst several optical imaging techniques that have the ability to characterize tissue non-invasively. To use these technologies for intraoperative tissue classification, fast and efficient analysis of optical data is required with minimal operator intervention. Additionally, there is a need for a reliable database of optical signatures to account for variable conditions. We developed a software system with an inexpensive, flexible mechanical framework to facilitate automated scanning of tissue and validate spectroscopic scans with histologic ground truths. This system will be used, in the future, to train a machine learning algorithm to distinguish between different tissue types using Raman Spectroscopy.
METHODS
A sample of chicken breast tissue is mounted to a microscope slide following a biopsy of fresh frozen tissue. Landmarks for registration and evaluation are marked on the …
Raman Spectroscopy is amongst several optical imaging techniques that have the ability to characterize tissue non-invasively. To use these technologies for intraoperative tissue classification, fast and efficient analysis of optical data is required with minimal operator intervention. Additionally, there is a need for a reliable database of optical signatures to account for variable conditions. We developed a software system with an inexpensive, flexible mechanical framework to facilitate automated scanning of tissue and validate spectroscopic scans with histologic ground truths. This system will be used, in the future, to train a machine learning algorithm to distinguish between different tissue types using Raman Spectroscopy.
METHODS
A sample of chicken breast tissue is mounted to a microscope slide following a biopsy of fresh frozen tissue. Landmarks for registration and evaluation are marked on the …
Lund, Shaun; Vaughan, Thomas; Ungi, Tamas; Lasso, Andras; Asselin, Mark; Yeo, Caitlin; Engel, C. Jay; Fichtinger, Gabor
Controlling virtual views in navigated breast conserving surgery Conference
SPIE Medical Imaging 2019, 2019.
@conference{Lund2019a,
title = {Controlling virtual views in navigated breast conserving surgery},
author = {Shaun Lund and Thomas Vaughan and Tamas Ungi and Andras Lasso and Mark Asselin and Caitlin Yeo and C. Jay Engel and Gabor Fichtinger},
year = {2019},
date = {2019-01-01},
urldate = {2019-01-01},
booktitle = {SPIE Medical Imaging 2019},
abstract = {<p><strong>PURPOSE</strong>: Lumpectomy is the resection of a tumor in the breast while retaining as much healthy tissue as possible.<br />
Navigated lumpectomy seeks to improve on the traditional technique by employing computer guidance to achieve the<br />
complete excision of the cancer with optimal retention of healthy tissue. Setting up navigation in the OR relies on the<br />
manual interactions of a trained technician to align three-dimensional virtual views to the patient’s physical position<br />
and maintain their alignment throughout surgery. This work develops automatic alignment tools to improve the<br />
operability of navigation software for lumpectomies.<br />
<strong>METHODS</strong>: Preset view buttons were developed to refine view setup to a single interaction. These buttons were<br />
tested by measuring the reduction in setup time and the number of manual interactions avoided through their use. An<br />
auto-center feature was created to ensure that three-dimensional models of anatomy and instruments were in the center<br />
of view throughout surgery. Recorded data from 32 lumpectomy cases were replayed and the number of auto-center<br />
view shifts was counted from the first cautery incision until the completion of the excision of cancerous tissue.<br />
<strong>RESULTS</strong>: View setup can now be performed in a single interaction compared to an average of 13 interactions<br />
(taking 83 seconds) when performed manually. The auto-center feature was activated an average of 33 times in the<br /> cases studied (n=32).<br />
<strong>CONCLUSION</strong>: The auto-center feature enhances the operability of the surgical navigation system, reducing the<br />
number of manual interactions required by a technician during the surgery. This feature along with preset camera view<br />
options are instrumental in the shift towards a completely surgeon-operable navigated lumpectomy system.</p>},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
<p><strong>PURPOSE</strong>: Lumpectomy is the resection of a tumor in the breast while retaining as much healthy tissue as possible.<br />
Navigated lumpectomy seeks to improve on the traditional technique by employing computer guidance to achieve the<br />
complete excision of the cancer with optimal retention of healthy tissue. Setting up navigation in the OR relies on the<br />
manual interactions of a trained technician to align three-dimensional virtual views to the patient’s physical position<br />
and maintain their alignment throughout surgery. This work develops automatic alignment tools to improve the<br />
operability of navigation software for lumpectomies.<br />
<strong>METHODS</strong>: Preset view buttons were developed to refine view setup to a single interaction. These buttons were<br />
tested by measuring the reduction in setup time and the number of manual interactions avoided through their use. An<br />
auto-center feature was created to ensure that three-dimensional models of anatomy and instruments were in the center<br />
of view throughout surgery. Recorded data from 32 lumpectomy cases were replayed and the number of auto-center<br />
view shifts was counted from the first cautery incision until the completion of the excision of cancerous tissue.<br />
<strong>RESULTS</strong>: View setup can now be performed in a single interaction compared to an average of 13 interactions<br />
(taking 83 seconds) when performed manually. The auto-center feature was activated an average of 33 times in the<br /> cases studied (n=32).<br />
<strong>CONCLUSION</strong>: The auto-center feature enhances the operability of the surgical navigation system, reducing the<br />
number of manual interactions required by a technician during the surgery. This feature along with preset camera view<br />
options are instrumental in the shift towards a completely surgeon-operable navigated lumpectomy system.</p>
Navigated lumpectomy seeks to improve on the traditional technique by employing computer guidance to achieve the<br />
complete excision of the cancer with optimal retention of healthy tissue. Setting up navigation in the OR relies on the<br />
manual interactions of a trained technician to align three-dimensional virtual views to the patient’s physical position<br />
and maintain their alignment throughout surgery. This work develops automatic alignment tools to improve the<br />
operability of navigation software for lumpectomies.<br />
<strong>METHODS</strong>: Preset view buttons were developed to refine view setup to a single interaction. These buttons were<br />
tested by measuring the reduction in setup time and the number of manual interactions avoided through their use. An<br />
auto-center feature was created to ensure that three-dimensional models of anatomy and instruments were in the center<br />
of view throughout surgery. Recorded data from 32 lumpectomy cases were replayed and the number of auto-center<br />
view shifts was counted from the first cautery incision until the completion of the excision of cancerous tissue.<br />
<strong>RESULTS</strong>: View setup can now be performed in a single interaction compared to an average of 13 interactions<br />
(taking 83 seconds) when performed manually. The auto-center feature was activated an average of 33 times in the<br /> cases studied (n=32).<br />
<strong>CONCLUSION</strong>: The auto-center feature enhances the operability of the surgical navigation system, reducing the<br />
number of manual interactions required by a technician during the surgery. This feature along with preset camera view<br />
options are instrumental in the shift towards a completely surgeon-operable navigated lumpectomy system.</p>
Brastianos, Harry; Vaughan, Thomas; Lasso, Andras; Westerland, Mary; Gooding, James; Fichtinger, Gabor; Falkson, Conrad
Real Time Electromagnetic Reconstruction of Catheter Paths in Multi-Catheter Interstitial Brachytherapy: A Phantom Model Conference
vol. Int J Radiat Oncol Biol Phys 99, 2017.
@conference{Brastianos2017b,
title = {Real Time Electromagnetic Reconstruction of Catheter Paths in Multi-Catheter Interstitial Brachytherapy: A Phantom Model},
author = {Harry Brastianos and Thomas Vaughan and Andras Lasso and Mary Westerland and James Gooding and Gabor Fichtinger and Conrad Falkson},
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Brastianos, Harry; Vaughan, Thomas; Lasso, Andras; Westerland, Mary; Gooding, James; Ungi, Tamas; Fichtinger, Gabor; Falkson, Conrad
Demonstration of Catheter Insertion Using Electromagnetic Guidance in Breast Brachytherapy Conference
European Society for Radiotherapy & Oncology (ESTRO) Annual Congress, vol. Radiother Oncol 123, 2017.
@conference{Brastianos2016c,
title = {Demonstration of Catheter Insertion Using Electromagnetic Guidance in Breast Brachytherapy},
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Harish, Vinyas; Bibic, Eden; Lasso, Andras; Holden, M.; Vaughan, Thomas; Baum, Zachary M C; Ungi, Tamas; Fichtinger, Gabor
An application of redundant sensors for intraoperative electromagnetic tracking error monitoring Conference
15th Annual Imaging Network Ontario Symposium, London, ON, Canada, 2017.
@conference{Harish2017b,
title = {An application of redundant sensors for intraoperative electromagnetic tracking error monitoring},
author = {Vinyas Harish and Eden Bibic and Andras Lasso and M. Holden and Thomas Vaughan and Zachary M C Baum and Tamas Ungi and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Harish2017b.pdf},
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Vaughan, Thomas; Brastianos, Harry; Lasso, Andras; Ungi, Tamas; Falkson, Conrad; Fichtinger, Gabor
Electromagnetically-generated catheter paths for breast brachytherapy Conference
15th Annual Imaging Network Ontario Symposium (ImNO), 2017.
@conference{Vaughan2017b,
title = {Electromagnetically-generated catheter paths for breast brachytherapy},
author = {Thomas Vaughan and Harry Brastianos and Andras Lasso and Tamas Ungi and Conrad Falkson and Gabor Fichtinger},
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Vaughan, Thomas; Ungi, Tamas; Lasso, Andras; Gauvin, Gabrielle; Engel, C. Jay; Rudan, John; Fichtinger, Gabor
Virtual views controlled by surgical tools for computer assisted interventions Conference
15th Annual Imaging Network Ontario Symposium (ImNO), 2017.
@conference{Vaughan2017a,
title = {Virtual views controlled by surgical tools for computer assisted interventions},
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Harish, Vinyas; Bibic, Eden; Lasso, Andras; Holden, M.; Vaughan, Thomas; Baum, Zachary M C; Ungi, Tamas; Fichtinger, Gabor
Monitoring electromagnetic tracking error using redundant sensors Conference
SPIE Medical Imaging 2017, SPIE Society for Optics and Photonics SPIE Society for Optics and Photonics, Orlando, FL, USA, 2017.
@conference{Harish2017a,
title = {Monitoring electromagnetic tracking error using redundant sensors},
author = {Vinyas Harish and Eden Bibic and Andras Lasso and M. Holden and Thomas Vaughan and Zachary M C Baum and Tamas Ungi and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Harish2017a.pdf},
year = {2017},
date = {2017-01-01},
urldate = {2017-01-01},
booktitle = {SPIE Medical Imaging 2017},
publisher = {SPIE Society for Optics and Photonics},
address = {Orlando, FL, USA},
organization = {SPIE Society for Optics and Photonics},
abstract = {<div class="page" title="Page 1"> <div class="layoutArea"> <div class="column"> <p><span style="font-family:trebuchet ms,helvetica,sans-serif"><span style="font-size:12px"><strong>PURPOSE: </strong>The intraoperative measurement of tracking error is crucial to ensure the reliability of electromagnetically navigated procedures. For intraoperative use, methods need to be quick to set up, easy to interpret, and not interfere with the ongoing procedure. Our goal was to evaluate the feasibility of using redundant electromagnetic sensors to alert users to tracking error in a navigated intervention setup. <strong>METHODS: </strong>Electromagnetic sensors were fixed to a rigid frame around a region of interest and on surgical tools. A software module was designed to detect tracking error by comparing real-time measurements of the differences between inter-sensor distances and angles to baseline measurements. Once these measurements were collected, a linear support vector machine-based classifier was used to predict tracking errors from redundant sensor readings. <strong>RESULTS: </strong>Measuring the deviation in the reported inter-sensor distance and </span></span><span style="font-family:timesnewromanpsmt; font-size:10.000000pt"><span style="font-family:lucida sans unicode,lucida grande,sans-serif"><span style="font-size:10px"><span style="font-size:12px"><span style="font-family:arial,helvetica,sans-serif"><span style="font-family:trebuchet ms,helvetica,sans-serif">angle</span></span></span></span></span></span><span style="font-family:trebuchet ms,helvetica,sans-serif"><span style="font-size:12px"> between the needle and cautery served as a valid indicator for electromagnetic tracking error. The highest classification accuracy, 86%, was achieved based on readings from the cautery when the two sensors on the cautery were close together. The specificity of this classifier was 93% and the sensitivity was 82%. <strong>CONCLUSION: </strong>Placing redundant electromagnetic sensors in a workspace seems to be feasible for the intraoperative detection of electromagnetic tracking error in controlled environments. Further testing should be performed to optimize the measurement error threshold used for classification in the support vector </span></span><span style="font-family:timesnewromanpsmt; font-size:10.000000pt"><span style="font-family:lucida sans unicode,lucida grande,sans-serif"><span style="font-size:10px"><span style="font-size:12px"><span style="font-family:arial,helvetica,sans-serif"><span style="font-family:trebuchet ms,helvetica,sans-serif">machine,</span></span></span></span></span></span><span style="font-family:trebuchet ms,helvetica,sans-serif"><span style="font-size:12px"> and improve the sensitivity of our method before application in real procedures. </span></span></p>
</div>
</div>
</div>},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
<div class="page" title="Page 1"> <div class="layoutArea"> <div class="column"> <p><span style="font-family:trebuchet ms,helvetica,sans-serif"><span style="font-size:12px"><strong>PURPOSE: </strong>The intraoperative measurement of tracking error is crucial to ensure the reliability of electromagnetically navigated procedures. For intraoperative use, methods need to be quick to set up, easy to interpret, and not interfere with the ongoing procedure. Our goal was to evaluate the feasibility of using redundant electromagnetic sensors to alert users to tracking error in a navigated intervention setup. <strong>METHODS: </strong>Electromagnetic sensors were fixed to a rigid frame around a region of interest and on surgical tools. A software module was designed to detect tracking error by comparing real-time measurements of the differences between inter-sensor distances and angles to baseline measurements. Once these measurements were collected, a linear support vector machine-based classifier was used to predict tracking errors from redundant sensor readings. <strong>RESULTS: </strong>Measuring the deviation in the reported inter-sensor distance and </span></span><span style="font-family:timesnewromanpsmt; font-size:10.000000pt"><span style="font-family:lucida sans unicode,lucida grande,sans-serif"><span style="font-size:10px"><span style="font-size:12px"><span style="font-family:arial,helvetica,sans-serif"><span style="font-family:trebuchet ms,helvetica,sans-serif">angle</span></span></span></span></span></span><span style="font-family:trebuchet ms,helvetica,sans-serif"><span style="font-size:12px"> between the needle and cautery served as a valid indicator for electromagnetic tracking error. The highest classification accuracy, 86%, was achieved based on readings from the cautery when the two sensors on the cautery were close together. The specificity of this classifier was 93% and the sensitivity was 82%. <strong>CONCLUSION: </strong>Placing redundant electromagnetic sensors in a workspace seems to be feasible for the intraoperative detection of electromagnetic tracking error in controlled environments. Further testing should be performed to optimize the measurement error threshold used for classification in the support vector </span></span><span style="font-family:timesnewromanpsmt; font-size:10.000000pt"><span style="font-family:lucida sans unicode,lucida grande,sans-serif"><span style="font-size:10px"><span style="font-size:12px"><span style="font-family:arial,helvetica,sans-serif"><span style="font-family:trebuchet ms,helvetica,sans-serif">machine,</span></span></span></span></span></span><span style="font-family:trebuchet ms,helvetica,sans-serif"><span style="font-size:12px"> and improve the sensitivity of our method before application in real procedures. </span></span></p>
</div>
</div>
</div>
</div>
</div>
</div>
Brastianos, Harry; Vaughan, Thomas; Lasso, Andras; Westerland, Mary; Gooding, James; Fichtinger, Gabor; Falkson, Conrad
Electromagnetic Reconstruction of Catheter Paths in Mult-Catheter Interstitial Brachytherapy: A Phantom Model. Conference
Canadian Association of Radiation Oncology (CARO) Annual Scientific Meeting, 2017.
@conference{Brastianos2017a,
title = {Electromagnetic Reconstruction of Catheter Paths in Mult-Catheter Interstitial Brachytherapy: A Phantom Model.},
author = {Harry Brastianos and Thomas Vaughan and Andras Lasso and Mary Westerland and James Gooding and Gabor Fichtinger and Conrad Falkson},
year = {2017},
date = {2017-01-01},
urldate = {2017-01-01},
booktitle = {Canadian Association of Radiation Oncology (CARO) Annual Scientific Meeting},
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Brastianos, H; Vaughan, Thomas; Lasso, Andras; Westerland, M; Gooding, James; Fichtinger, Gabor; Falkson, Conrad
Electromagnetic tracking for catheter insertion guidance for HDR breast brachytherapy: a phantom experiment Conference
American Society for Radiation Oncology (ASTRO) Annual Meeting, vol. Int J Radiat Oncol Biol Phys 96, Boston, MA, USA, 2016.
@conference{Brastianos2016b,
title = {Electromagnetic tracking for catheter insertion guidance for HDR breast brachytherapy: a phantom experiment},
author = {H Brastianos and Thomas Vaughan and Andras Lasso and M Westerland and James Gooding and Gabor Fichtinger and Conrad Falkson},
year = {2016},
date = {2016-09-01},
urldate = {2016-09-01},
booktitle = {American Society for Radiation Oncology (ASTRO) Annual Meeting},
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address = {Boston, MA, USA},
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Brastianos, H; Vaughan, Thomas; Lasso, Andras; Westerland, M; Gooding, James; Fichtinger, Gabor; Falkson, Conrad
Electromagnetic tracking for catheter insertion guidance for HDR breast brachytherapy: demonstration of concept in phantoms Conference
Canadian Association of Radiation Oncology (CARO) Annual Scientific Meeting, vol. Radiother Oncol 120, Banff, AB, Canada, 2016.
@conference{Brastianos2016a,
title = {Electromagnetic tracking for catheter insertion guidance for HDR breast brachytherapy: demonstration of concept in phantoms},
author = {H Brastianos and Thomas Vaughan and Andras Lasso and M Westerland and James Gooding and Gabor Fichtinger and Conrad Falkson},
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volume = {Radiother Oncol 120},
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address = {Banff, AB, Canada},
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Vaughan, Thomas; Brastianos, Harry; Lasso, Andras; Westerland, Mary; Ungi, Tamas; Falkson, Conrad; Fichtinger, Gabor
Catheter targeting under electromagnetic guidance in breast brachytherapy – a demonstration of concept Conference
30th International Congress & Exhibition on Computer Assisted Radiology and Surgery (CARS), vol. Int J CARS, no. Suppl 1, 2016.
@conference{Vaughan2016a,
title = {Catheter targeting under electromagnetic guidance in breast brachytherapy – a demonstration of concept},
author = {Thomas Vaughan and Harry Brastianos and Andras Lasso and Mary Westerland and Tamas Ungi and Conrad Falkson and Gabor Fichtinger},
year = {2016},
date = {2016-05-01},
urldate = {2016-05-01},
booktitle = {30th International Congress & Exhibition on Computer Assisted Radiology and Surgery (CARS)},
volume = {Int J CARS},
number = {Suppl 1},
pages = {S60-62},
keywords = {},
pubstate = {published},
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Ungi, Tamas; Vaughan, Thomas; Gauvin, Gabrielle; Pezeshki, Padina; Lasso, Andras; Engel, C. Jay; Rudan, John; Fichtinger, Gabor
Intraoperative user interface for navigated breast tumor surgery Conference
Computer Assisted Radiology and Surgery, 30th International Congress, vol. 11, Springer Springer, Heidelberg, Germany, 2016.
@conference{Ungi2016c,
title = {Intraoperative user interface for navigated breast tumor surgery},
author = {Tamas Ungi and Thomas Vaughan and Gabrielle Gauvin and Padina Pezeshki and Andras Lasso and C. Jay Engel and John Rudan and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Ungi2016c.pdf},
doi = {10.1007/s11548-016-1412-5},
year = {2016},
date = {2016-05-01},
urldate = {2016-05-01},
booktitle = {Computer Assisted Radiology and Surgery, 30th International Congress},
volume = {11},
pages = {S108-9},
publisher = {Springer},
address = {Heidelberg, Germany},
organization = {Springer},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Heffernan, Emily; Ungi, Tamas; Vaughan, Thomas; Pezeshki, Padina; Lasso, Andras; Gauvin, Gabrielle; Rudan, John; Engel, C. Jay; Morin, Evelyn; Fichtinger, Gabor
Accuracy of lesion boundary tracking in navigated breast tumor excision Conference
SPIE Medical Imaging 2016, vol. 9786, San Diego, CA, USA, 2016.
@conference{Heffernan2016,
title = {Accuracy of lesion boundary tracking in navigated breast tumor excision},
author = {Emily Heffernan and Tamas Ungi and Thomas Vaughan and Padina Pezeshki and Andras Lasso and Gabrielle Gauvin and John Rudan and C. Jay Engel and Evelyn Morin and Gabor Fichtinger},
url = {http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2505913&resultClick=1
https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Heffernan2016-manuscript.pdf},
doi = {10.1117/12.2217017},
year = {2016},
date = {2016-03-01},
urldate = {2016-03-01},
booktitle = {SPIE Medical Imaging 2016},
volume = {9786},
pages = {97860Y-1-6},
address = {San Diego, CA, USA},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Vaughan, Thomas; Brastianos, Harry; Lasso, Andras; Westerland, Mary; Ungi, Tamas; Falkson, Conrad; Fichtinger, Gabor
Electromagnetically-guided catheter insertions in breast phantoms for brachytherapy Conference
14th Annual Imaging Network Ontario Symposium (ImNO), 2016.
@conference{Vaughan2016b,
title = {Electromagnetically-guided catheter insertions in breast phantoms for brachytherapy},
author = {Thomas Vaughan and Harry Brastianos and Andras Lasso and Mary Westerland and Tamas Ungi and Conrad Falkson and Gabor Fichtinger},
year = {2016},
date = {2016-01-01},
urldate = {2016-01-01},
booktitle = {14th Annual Imaging Network Ontario Symposium (ImNO)},
keywords = {},
pubstate = {published},
tppubtype = {conference}
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Carter, Kaci; Vaughan, Thomas; Holden, M.; Gauvin, Gabrielle; Pezeshki, Padina; Lasso, Andras; Ungi, Tamas; Morin, Evelyn; Rudan, John; Engel, C. Jay; Fichtinger, Gabor
Visual feedback mounted on surgical tool: proof of concept Conference
13th Imaging Network of Ontario Symposium (ImNO 2015), vol. 9786, San Diego, CA, USA, 2016.
@conference{Carter2016a,
title = {Visual feedback mounted on surgical tool: proof of concept},
author = {Kaci Carter and Thomas Vaughan and M. Holden and Gabrielle Gauvin and Padina Pezeshki and Andras Lasso and Tamas Ungi and Evelyn Morin and John Rudan and C. Jay Engel and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Carter2015a-slides.pptx
https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Carter2015a-poster.pptx
https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Carter2015a-slides.pptx},
year = {2016},
date = {2016-01-01},
urldate = {2016-01-01},
booktitle = {13th Imaging Network of Ontario Symposium (ImNO 2015)},
volume = {9786},
address = {San Diego, CA, USA},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Brastianos, Harry C; Vaughan, Thomas; Lasso, Andras; Westerland, Mary; Gooding, James; Fichtinger, Gabor; Falkson, Conrad
201: Electromagnetic Tracking for Catheter Insertion Guidance for HDR Breast Brachytherapy: Demonstration of Concept in Phantoms Journal Article
In: Radiotherapy and Oncology, vol. 1, iss. 120, pp. S73-S74, 2016.
@article{fichtinger2016l,
title = {201: Electromagnetic Tracking for Catheter Insertion Guidance for HDR Breast Brachytherapy: Demonstration of Concept in Phantoms},
author = {Harry C Brastianos and Thomas Vaughan and Andras Lasso and Mary Westerland and James Gooding and Gabor Fichtinger and Conrad Falkson},
url = {https://www.infona.pl/resource/bwmeta1.element.elsevier-303b388f-a840-3ddd-82f4-1a526950eefa},
year = {2016},
date = {2016-01-01},
journal = {Radiotherapy and Oncology},
volume = {1},
issue = {120},
pages = {S73-S74},
abstract = {201: Electromagnetic Tracking for Catheter Insertion Guidance for HDR Breast Brachytherapy: Demonstration of Concept in Phantoms × Close The Infona portal uses cookies, ie strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser. I accept Polski English Login or register account remember me Password recovery INFONA - …},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
201: Electromagnetic Tracking for Catheter Insertion Guidance for HDR Breast Brachytherapy: Demonstration of Concept in Phantoms × Close The Infona portal uses cookies, ie strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser. I accept Polski English Login or register account remember me Password recovery INFONA - …
Ungi, Tamas; Gauvin, Gabrielle; Lasso, Andras; Yeo, Caitlin T; Pezeshki, Padina; Vaughan, Thomas; Carter, Kaci; Rudan, John; Engel, C. Jay; Fichtinger, Gabor
Navigated breast tumor excision using electromagnetically tracked ultrasound and surgical instruments Journal Article
In: IEEE Transactions on Biomedical Engineering, 2015, ISSN: 0018-9294.
@article{Ungi2015b,
title = {Navigated breast tumor excision using electromagnetically tracked ultrasound and surgical instruments},
author = {Tamas Ungi and Gabrielle Gauvin and Andras Lasso and Caitlin T Yeo and Padina Pezeshki and Thomas Vaughan and Kaci Carter and John Rudan and C. Jay Engel and Gabor Fichtinger},
url = {http://www.ncbi.nlm.nih.gov/pubmed/26302503
https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Ungi2015b.pdf},
doi = {10.1109/TBME.2015.2466591},
issn = {0018-9294},
year = {2015},
date = {2015-08-01},
urldate = {2015-08-01},
journal = {IEEE Transactions on Biomedical Engineering},
abstract = {<h4>OBJECTIVE:</h4>
<p>Lumpectomy, breast conserving tumor excision, is the standard surgical treatment in early stage breast cancer. A common problem with lumpectomy is that the tumor may not be completely excised, and additional surgery becomes necessary. We investigated if a surgical navigation system using intraoperative ultrasound improves the outcomes of lumpectomy, and if such a system can be implemented in the clinical environment.</p>
<h4>METHODS:</h4>
<p>Position sensors were applied on the tumor localization needle, the ultrasound probe, and the cautery, and three-dimensional navigation views were generated using real time tracking information. The system was tested against standard wire-localization procedures on phantom breast models by eight surgical residents. Clinical safety and feasibility was tested in six palpable tumor patients undergoing lumpectomy by two experienced surgical oncologists.</p>
<h4>RESULTS:</h4> <p>Navigation resulted in significantly less tissue excised compared to control procedures (10.3 ± 4.4 vs. 18.6 ± 8.7 g},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
<h4>OBJECTIVE:</h4>
<p>Lumpectomy, breast conserving tumor excision, is the standard surgical treatment in early stage breast cancer. A common problem with lumpectomy is that the tumor may not be completely excised, and additional surgery becomes necessary. We investigated if a surgical navigation system using intraoperative ultrasound improves the outcomes of lumpectomy, and if such a system can be implemented in the clinical environment.</p>
<h4>METHODS:</h4>
<p>Position sensors were applied on the tumor localization needle, the ultrasound probe, and the cautery, and three-dimensional navigation views were generated using real time tracking information. The system was tested against standard wire-localization procedures on phantom breast models by eight surgical residents. Clinical safety and feasibility was tested in six palpable tumor patients undergoing lumpectomy by two experienced surgical oncologists.</p>
<h4>RESULTS:</h4> <p>Navigation resulted in significantly less tissue excised compared to control procedures (10.3 ± 4.4 vs. 18.6 ± 8.7 g
<p>Lumpectomy, breast conserving tumor excision, is the standard surgical treatment in early stage breast cancer. A common problem with lumpectomy is that the tumor may not be completely excised, and additional surgery becomes necessary. We investigated if a surgical navigation system using intraoperative ultrasound improves the outcomes of lumpectomy, and if such a system can be implemented in the clinical environment.</p>
<h4>METHODS:</h4>
<p>Position sensors were applied on the tumor localization needle, the ultrasound probe, and the cautery, and three-dimensional navigation views were generated using real time tracking information. The system was tested against standard wire-localization procedures on phantom breast models by eight surgical residents. Clinical safety and feasibility was tested in six palpable tumor patients undergoing lumpectomy by two experienced surgical oncologists.</p>
<h4>RESULTS:</h4> <p>Navigation resulted in significantly less tissue excised compared to control procedures (10.3 ± 4.4 vs. 18.6 ± 8.7 g
Vaughan, Thomas; Lasso, Andras; Ungi, Tamas; Fichtinger, Gabor
Hole filling with oriented sticks in ultrasound volume reconstruction Journal Article
In: J. Med. Imag., vol. 2, no. 3, 2015.
@article{Vaughan2015,
title = {Hole filling with oriented sticks in ultrasound volume reconstruction},
author = {Thomas Vaughan and Andras Lasso and Tamas Ungi and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Vaughan2015_Manuscript_0.pdf},
year = {2015},
date = {2015-01-01},
urldate = {2015-01-01},
journal = {J. Med. Imag.},
volume = {2},
number = {3},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Vaughan, Thomas
Generating Patient-Specific 3D Models using a Pointing Device Masters Thesis
Queen’s University, Kingston, Ontario, 2014.
@mastersthesis{Vaughan2014a,
title = {Generating Patient-Specific 3D Models using a Pointing Device},
author = {Thomas Vaughan},
url = {https://qspace.library.queensu.ca/handle/1974/12400},
year = {2014},
date = {2014-08-01},
urldate = {2014-08-01},
address = {Kingston, Ontario},
school = {Queen’s University},
keywords = {},
pubstate = {published},
tppubtype = {mastersthesis}
}
Vaughan, Thomas; Lasso, Andras; Fichtinger, Gabor
Ultrasound Volume Reconstruction: Open-Source Implementation with Hole Filling Functionality Conference
5th NCIGT and NIH Image Guided Therapy Workshop, Boston, MA, 2012.
@conference{Vaughan2012,
title = {Ultrasound Volume Reconstruction: Open-Source Implementation with Hole Filling Functionality},
author = {Thomas Vaughan and Andras Lasso and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Vaughan2012.pdf
https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Vaughan2012-poster.pdf},
year = {2012},
date = {2012-09-01},
urldate = {2012-09-01},
booktitle = {5th NCIGT and NIH Image Guided Therapy Workshop},
address = {Boston, MA},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}