Paweena U-Thainual
Sue Sue received PhD in the Perk Lab, she worked on Augmented reality image overlay guidance for musculoskeletal procedures and developed the Perk Station Augmented Reality Surgical Navigation Training Suite. She is presently an ORISE fellow at the U.S. Food and Drug Admoinstration, Silver Spring, MD, USA
Marker, David R.; U-Thainual, Paweena; Ungi, Tamas; Flammang, Aaron J; Fichtinger, Gabor; Iordachita, Iulian; Carrino, John A; Fritz, Jan
1.5 Tesla augmented reality navigated interventional magnetic resonance imaging: paravertebral sympathetic plexus injections Journal Article
In: Diagnostic and Interventional Radiology, 2017.
@article{Marker2017,
title = {1.5 Tesla augmented reality navigated interventional magnetic resonance imaging: paravertebral sympathetic plexus injections},
author = {David R. Marker and Paweena U-Thainual and Tamas Ungi and Aaron J Flammang and Gabor Fichtinger and Iulian Iordachita and John A Carrino and Jan Fritz},
url = {https://queensuca.sharepoint.com/:b:/r/teams/GROUP-PerkLab/Shared%20Documents/Papers/Private%20Attachments%20for%20PerkLab%20Website/2017%20-%20DIR%20-%201.5%20T%20augmented%20reality%20navigated%20interventional%20MRI%20-%20paravertebral%20sympathetic%20plexus%20injections.pdf?csf=1&web=1&e=eYTsTl},
year = {2017},
date = {2017-01-01},
urldate = {2017-01-01},
journal = {Diagnostic and Interventional Radiology},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Marker, David R.; U-Thainual, Paweena; Ungi, Tamas; Flammang, Aaron J; Fichtinger, Gabor; Iordachita, Iulian; Carrino, John A; Fritz, Jan
MR-guided perineural injection of the ganglion impar: technical considerations and feasibility Journal Article
In: Skeletal Radiology, 2016.
@article{Marker2016,
title = {MR-guided perineural injection of the ganglion impar: technical considerations and feasibility},
author = {David R. Marker and Paweena U-Thainual and Tamas Ungi and Aaron J Flammang and Gabor Fichtinger and Iulian Iordachita and John A Carrino and Jan Fritz},
url = {http://dx.doi.org/10.1007/s00256-016-2333-7},
year = {2016},
date = {2016-01-01},
urldate = {2016-01-01},
journal = {Skeletal Radiology},
abstract = {<div class="AbstractSection" id="ASec1" style="border: 0px; font-stretch: inherit; font-size: 13px; line-height: 13px; font-family: ’Helvetica Neue’, Arial, Helvetica, sans-serif; margin: 0.3em 0px 0px; padding: 0px; vertical-align: baseline; outline: 0px; color: rgb(51, 51, 51); background-color: rgb(255, 255, 255);">
<h3>Objective</h3>
<p>Perineural ganglion impar injections are used in the management of pelvic pain syndromes; however, there is no consensus regarding the optimal image guidance. Magnetic resonance imaging (MRI) provides high soft tissue contrast and the potential to directly visualize and target the ganglion. The purpose of this study was to assess the feasibility of MR-guided percutaneous perineural ganglion impar injections.</p>
</div> <div class="AbstractSection" id="ASec2" style="border: 0px; font-stretch: inherit; font-size: 13px; line-height: 13px; font-family: ’Helvetica Neue’, Arial, Helvetica, sans-serif; margin: 0.3em 0px 0px; padding: 0px; vertical-align: baseline; outline: 0px; color: rgb(51, 51, 51); background-color: rgb(255, 255, 255);">
<h3>Materials and methods</h3>
<p>Six MR-guided ganglion impar injections were performed in six human cadavers. Procedures were performed with a clinical 1.5-Tesla MRI system through a far lateral transgluteus approach. Ganglion impar visibility, distance from the sacrococcygeal joint, number of intermittent MRI control steps required to place the needle, target error between the intended and final needle tip location, inadvertent punctures of non-targeted vulnerable structures, injectant distribution, and procedure time were determined.</p>
</div> <div class="AbstractSection" id="ASec3" style="border: 0px; font-stretch: inherit; font-size: 13px; line-height: 13px; font-family: ’Helvetica Neue’, Arial, Helvetica, sans-serif; margin: 0.3em 0px 0px; padding: 0px; vertical-align: baseline; outline: 0px; color: rgb(51, 51, 51); background-color: rgb(255, 255, 255);">
<h3>Results</h3>
<p>The ganglion impar was seen on MRI in 4/6 (66 %) of cases and located 0.8 mm cephalad to 16.3 mm caudad (average 1.2 mm caudad) to the midpoint of the sacrococcygeal joint. Needle placement required an average of three MRI control steps (range, 2–6). The average target error was 2.2 ± 2.1 mm. In 6/6 cases (100 %), there was appropriate periganglionic distribution and filling of the presacrococcygeal space. No punctures of non-targeted structures occurred. The median procedure time was 20 min (range, 12–29 min).</p>
</div> <div class="AbstractSection" id="ASec4" style="border: 0px; font-stretch: inherit; font-size: 13px; line-height: 13px; font-family: ’Helvetica Neue’, Arial, Helvetica, sans-serif; margin: 0.3em 0px 0px; padding: 0px; vertical-align: baseline; outline: 0px; color: rgb(51, 51, 51); background-color: rgb(255, 255, 255);">
<h3>Conclusion</h3>
<p>Interventional MRI can visualize and directly target the ganglion impar for accurate needle placement and successful periganglionic injection with the additional benefit of no ionizing radiation exposure to patient and staff. Our results support clinical evaluation.</p>
</div>},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
<h3>Objective</h3>
<p>Perineural ganglion impar injections are used in the management of pelvic pain syndromes; however, there is no consensus regarding the optimal image guidance. Magnetic resonance imaging (MRI) provides high soft tissue contrast and the potential to directly visualize and target the ganglion. The purpose of this study was to assess the feasibility of MR-guided percutaneous perineural ganglion impar injections.</p>
</div> <div class="AbstractSection" id="ASec2" style="border: 0px; font-stretch: inherit; font-size: 13px; line-height: 13px; font-family: ’Helvetica Neue’, Arial, Helvetica, sans-serif; margin: 0.3em 0px 0px; padding: 0px; vertical-align: baseline; outline: 0px; color: rgb(51, 51, 51); background-color: rgb(255, 255, 255);">
<h3>Materials and methods</h3>
<p>Six MR-guided ganglion impar injections were performed in six human cadavers. Procedures were performed with a clinical 1.5-Tesla MRI system through a far lateral transgluteus approach. Ganglion impar visibility, distance from the sacrococcygeal joint, number of intermittent MRI control steps required to place the needle, target error between the intended and final needle tip location, inadvertent punctures of non-targeted vulnerable structures, injectant distribution, and procedure time were determined.</p>
</div> <div class="AbstractSection" id="ASec3" style="border: 0px; font-stretch: inherit; font-size: 13px; line-height: 13px; font-family: ’Helvetica Neue’, Arial, Helvetica, sans-serif; margin: 0.3em 0px 0px; padding: 0px; vertical-align: baseline; outline: 0px; color: rgb(51, 51, 51); background-color: rgb(255, 255, 255);">
<h3>Results</h3>
<p>The ganglion impar was seen on MRI in 4/6 (66 %) of cases and located 0.8 mm cephalad to 16.3 mm caudad (average 1.2 mm caudad) to the midpoint of the sacrococcygeal joint. Needle placement required an average of three MRI control steps (range, 2–6). The average target error was 2.2 ± 2.1 mm. In 6/6 cases (100 %), there was appropriate periganglionic distribution and filling of the presacrococcygeal space. No punctures of non-targeted structures occurred. The median procedure time was 20 min (range, 12–29 min).</p>
</div> <div class="AbstractSection" id="ASec4" style="border: 0px; font-stretch: inherit; font-size: 13px; line-height: 13px; font-family: ’Helvetica Neue’, Arial, Helvetica, sans-serif; margin: 0.3em 0px 0px; padding: 0px; vertical-align: baseline; outline: 0px; color: rgb(51, 51, 51); background-color: rgb(255, 255, 255);">
<h3>Conclusion</h3>
<p>Interventional MRI can visualize and directly target the ganglion impar for accurate needle placement and successful periganglionic injection with the additional benefit of no ionizing radiation exposure to patient and staff. Our results support clinical evaluation.</p>
</div>
Fritz, Jan; U-Thainual, Paweena; Ungi, Tamas; Flammang, Aaron J; Kathuria, Sudhir; Fichtinger, Gabor; Iordachita, Iulian; Carrino, John A
MR-Guided Vertebroplasty With Augmented Reality Image Overlay Navigation Journal Article
In: Cardiovasc Intervent Radiol, 2014.
@article{Fritz2014,
title = {MR-Guided Vertebroplasty With Augmented Reality Image Overlay Navigation},
author = {Jan Fritz and Paweena U-Thainual and Tamas Ungi and Aaron J Flammang and Sudhir Kathuria and Gabor Fichtinger and Iulian Iordachita and John A Carrino},
doi = {10.1007/s00270-014-0885-2},
year = {2014},
date = {2014-04-01},
urldate = {2014-04-01},
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Fritz, Jan; U-Thainual, Paweena; Ungi, Tamas; Flammang, Aaron J; Kathuria, Sudhir; Fichtinger, Gabor; Iordachita, Iulian I; Carrino, John A
MR-guided vertebroplasty with augmented reality image overlay navigation Journal Article
In: Cardiovascular and interventional radiology, vol. 37, pp. 1589-1596, 2014.
@article{fichtinger2014c,
title = {MR-guided vertebroplasty with augmented reality image overlay navigation},
author = {Jan Fritz and Paweena U-Thainual and Tamas Ungi and Aaron J Flammang and Sudhir Kathuria and Gabor Fichtinger and Iulian I Iordachita and John A Carrino},
url = {https://link.springer.com/article/10.1007/s00270-014-0885-2},
year = {2014},
date = {2014-01-01},
journal = {Cardiovascular and interventional radiology},
volume = {37},
pages = {1589-1596},
publisher = {Springer US},
abstract = {Purpose
To evaluate the feasibility of magnetic resonance imaging (MRI)-guided vertebroplasty at 1.5 Tesla using augmented reality image overlay navigation.
Materials and Methods
Twenty-five unilateral vertebroplasties [5 of 25 (20 %) thoracic, 20 of 25 (80 %) lumbar] were prospectively planned in 5 human cadavers. A clinical 1.5-Teslan MRI system was used. An augmented reality image overlay navigation system and 3D Slicer visualization software were used for MRI display, planning, and needle navigation. Intermittent MRI was used to monitor placement of the MRI-compatible vertebroplasty needle. Cement injections (3 ml of polymethylmethacrylate) were performed outside the bore. The cement deposits were assessed on intermediate-weighted MR images. Outcome variables included type of vertebral body access, number of required …},
keywords = {},
pubstate = {published},
tppubtype = {article}
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To evaluate the feasibility of magnetic resonance imaging (MRI)-guided vertebroplasty at 1.5 Tesla using augmented reality image overlay navigation.
Materials and Methods
Twenty-five unilateral vertebroplasties [5 of 25 (20 %) thoracic, 20 of 25 (80 %) lumbar] were prospectively planned in 5 human cadavers. A clinical 1.5-Teslan MRI system was used. An augmented reality image overlay navigation system and 3D Slicer visualization software were used for MRI display, planning, and needle navigation. Intermittent MRI was used to monitor placement of the MRI-compatible vertebroplasty needle. Cement injections (3 ml of polymethylmethacrylate) were performed outside the bore. The cement deposits were assessed on intermediate-weighted MR images. Outcome variables included type of vertebral body access, number of required …
Anand, Manjunath; Ungi, Tamas; Lasso, Andras; U-Thainual, Paweena; Jayender, Jagadeesan; Fritz, Jan; Carrino, John A; Jolesz, Ferenc; Fichtinger, Gabor
MOBILE IMAGE OVERLAY SYSTEM (MIOS) FOR IMAGE GUIDED INTERVENTIONS Conference
16th Annual Scientific Meeting for Health Science Research Trainees, Faculty of Health Sciences, Queen’s University, Faculty of Health Sciences, Queen’s University, 2013.
@conference{Anand2013c,
title = {MOBILE IMAGE OVERLAY SYSTEM (MIOS) FOR IMAGE GUIDED INTERVENTIONS},
author = {Manjunath Anand and Tamas Ungi and Andras Lasso and Paweena U-Thainual and Jagadeesan Jayender and Jan Fritz and John A Carrino and Ferenc Jolesz and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/MIOSQFHSRTD2013Abstract.pdf
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Fritz, Jan; U-Thainual, Paweena; Ungi, Tamas; Flammang, Aaron J; McCarthy, EF.; Fichtinger, Gabor; Iordachita, Iulian; Carrino, John A
Augmented Reality Visualization Using Image Overlay Technology for MR-Guided Interventions: Cadaveric Bone Biopsy at 1.5 T Journal Article
In: Investigative Radiology, vol. 48, no. 6, 2013.
@article{Fritz2013b,
title = {Augmented Reality Visualization Using Image Overlay Technology for MR-Guided Interventions: Cadaveric Bone Biopsy at 1.5 T},
author = {Jan Fritz and Paweena U-Thainual and Tamas Ungi and Aaron J Flammang and EF. McCarthy and Gabor Fichtinger and Iulian Iordachita and John A Carrino},
url = {http://www.ncbi.nlm.nih.gov/pubmed/23328911
https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Fritz2013b.pdf},
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Anand, Manjunath; Ungi, Tamas; Lasso, Andras; U-Thainual, Paweena; Jayender, Jagadeesan; Fritz, Jan; Carrino, John A; Jolesz, Ferenc; Fichtinger, Gabor
The Hamlyn Symposium on Medical Robotics - 2013, 2013.
@conference{Anand2013b,
title = {Workspace Analysis and Calibration Method for Mobile Image Overlay System used for Image-Guided Interventions},
author = {Manjunath Anand and Tamas Ungi and Andras Lasso and Paweena U-Thainual and Jagadeesan Jayender and Jan Fritz and John A Carrino and Ferenc Jolesz and Gabor Fichtinger},
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U-Thainual, Paweena; Fritz, Jan; Moonjaita, Choladawan; Ungi, Tamas; Flammang, Aaron J; Carrino, John A; Fichtinger, Gabor; Iordachita, Iulian
MR image overlay guidance: system evaluation for preclinical use Journal Article
In: International Journal of Computer Assisted Radiology and Surgery, vol. 8, pp. 365-378, 2013, ISSN: 1861-6410.
@article{U-Thainual2013b,
title = {MR image overlay guidance: system evaluation for preclinical use},
author = {Paweena U-Thainual and Jan Fritz and Choladawan Moonjaita and Tamas Ungi and Aaron J Flammang and John A Carrino and Gabor Fichtinger and Iulian Iordachita},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/10.1007_s11548-012-0788-0.pdf},
doi = {10.1007/s11548-012-0788-0},
issn = {1861-6410},
year = {2013},
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urldate = {2013-05-01},
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Anand, Manjunath; Ungi, Tamas; Lasso, Andras; U-Thainual, Paweena; Jayender, Jagadeesan; Fritz, Jan; Carrino, John A; Jolesz, Ferenc; Fichtinger, Gabor
Mobile Image Overlay System for Image Guided Interventions Conference
6th NCIGT and NIH Image Guided Therapy Workshop, Washington DC, USA, March 21-23, 2013., 2013.
@conference{Anand2013a,
title = {Mobile Image Overlay System for Image Guided Interventions},
author = {Manjunath Anand and Tamas Ungi and Andras Lasso and Paweena U-Thainual and Jagadeesan Jayender and Jan Fritz and John A Carrino and Ferenc Jolesz and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Anand2013a.pdf
https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Anand2013a-poster.pdf},
year = {2013},
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booktitle = {6th NCIGT and NIH Image Guided Therapy Workshop},
address = {Washington DC, USA, March 21-23, 2013.},
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pubstate = {published},
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U-Thainual, Paweena; Fritz, Jan; Ungi, Tamas; Carrino, John A; Fichtinger, Gabor; Iordachita, Iulian
MR Image Overlay Adjustable Plane System for Musculoskeletal Interventions Conference
ImNO2013 - Imaging Network Ontario Symposium, Toronto, Ontario, Canada, February 4-5, 2013, 2013.
@conference{U-Thainual2013a,
title = {MR Image Overlay Adjustable Plane System for Musculoskeletal Interventions},
author = {Paweena U-Thainual and Jan Fritz and Tamas Ungi and John A Carrino and Gabor Fichtinger and Iulian Iordachita},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Paweena_Abstract_ImNO2013.pdf
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year = {2013},
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booktitle = {ImNO2013 - Imaging Network Ontario Symposium},
address = {Toronto, Ontario, Canada, February 4-5, 2013},
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Fritz, Jan; U-Thainual, Paweena; Ungi, Tamas; Flammang, Aaron J; Fichtinger, Gabor; Iordachita, Iulian; Carrino, John A
In: European Radiology, vol. 23, pp. 235-245, 2013, ISSN: 0938-7994.
@article{Fritz2013a,
title = {Augmented reality visualisation using an image overlay system for MR-guided interventions: technical performance of spine injection procedures in human cadavers at 1.5 Tesla},
author = {Jan Fritz and Paweena U-Thainual and Tamas Ungi and Aaron J Flammang and Gabor Fichtinger and Iulian Iordachita and John A Carrino},
url = {http://www.ncbi.nlm.nih.gov/pubmed/22797956
https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/2012-ER-Overlay-spine-injection-cadavers.pdf},
doi = {10.1007/s00330-012-2569-0},
issn = {0938-7994},
year = {2013},
date = {2013-01-01},
urldate = {2013-01-01},
journal = {European Radiology},
volume = {23},
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Fritz, Jan; U-Thainual, Paweena; Ungi, Tamas; Flammang, Aaron J; Fichtinger, Gabor; Iordachita, Iulian; Carrino, John A
In: Radiology, vol. 265, no. 1, pp. 254-259, 2012.
@article{Fritz2012b,
title = {Augmented Reality Visualization with Use of Image Overlay Technology for MR Imaging–guided Interventions: Assessment of Performance in Cadaveric Shoulder and Hip Arthrography at 1.5 T},
author = {Jan Fritz and Paweena U-Thainual and Tamas Ungi and Aaron J Flammang and Gabor Fichtinger and Iulian Iordachita and John A Carrino},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/254.full__0.pdf},
doi = {10.1148/radiol.12112640},
year = {2012},
date = {2012-10-01},
urldate = {2012-10-01},
journal = {Radiology},
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number = {1},
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U-Thainual, Paweena; Fritz, Jan; Moonjaita, Choladawan; Ungi, Tamas; Flammang, Aaron J; Carrino, John A; Fichtinger, Gabor; Iordachita, Iulian
MR Image Overlay Guidance: System Evaluation for Clinical Use Conference
CARS 2012 Computer Assisted Radiology and Surgery, Pisa, Italy, June 27-30, 2012.
@conference{U-Thainual2012a,
title = {MR Image Overlay Guidance: System Evaluation for Clinical Use},
author = {Paweena U-Thainual and Jan Fritz and Choladawan Moonjaita and Tamas Ungi and Aaron J Flammang and John A Carrino and Gabor Fichtinger and Iulian Iordachita},
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Fritz, Jan; U-Thainual, Paweena; Ungi, Tamas; Flammang, Aaron J; Fichtinger, Gabor; Iordachita, Iulian; Carrino, John A
CARS 2012 Computer Assisted Radiology and Surgery, Pisa, Italy, June 27-30, 2012.
@conference{Fritz2012c,
title = {Augmented Reality Visualization Using Image-Overlay for MR-guided Interventions: Performance Assessment of Paravertebral Sympathetic Perineural Injections in Cadavers at 1.5 Tesla},
author = {Jan Fritz and Paweena U-Thainual and Tamas Ungi and Aaron J Flammang and Gabor Fichtinger and Iulian Iordachita and John A Carrino},
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Fritz, Jan; U-Thainual, Paweena; Ungi, Tamas; Flammang, Aaron J; Cho, Nathan Bongjoon; Fichtinger, Gabor; Iordachita, Iulian; Carrino, John A
In: American Journal of Roentgenology, vol. 198, pp. W266-73, 2012.
@article{Fritz2012a,
title = {Augmented Reality Visualization Using Image-Overlay for MR-Guided Interventions: Accuracy for Lumbar Spinal Procedures with a 1.5-Tesla MRI scanner.},
author = {Jan Fritz and Paweena U-Thainual and Tamas Ungi and Aaron J Flammang and Nathan Bongjoon Cho and Gabor Fichtinger and Iulian Iordachita and John A Carrino},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/W266.full_.pdf},
year = {2012},
date = {2012-03-01},
urldate = {2012-03-01},
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Fritz, Jan; U-Thainual, Paweena; Ungi, Tamas; Flammang, Aaron J; Cho, Nathan B; Fichtinger, Gabor; Iordachita, Iulian I; Carrino, John A
Augmented reality visualization with image overlay for MRI-guided intervention: accuracy for lumbar spinal procedures with a 1.5-T MRI system Journal Article
In: American Journal of Roentgenology, vol. 198, iss. 3, pp. W266-W273, 2012.
@article{fichtinger2012f,
title = {Augmented reality visualization with image overlay for MRI-guided intervention: accuracy for lumbar spinal procedures with a 1.5-T MRI system},
author = {Jan Fritz and Paweena U-Thainual and Tamas Ungi and Aaron J Flammang and Nathan B Cho and Gabor Fichtinger and Iulian I Iordachita and John A Carrino},
url = {https://ajronline.org/doi/abs/10.2214/AJR.11.6918},
year = {2012},
date = {2012-01-01},
journal = {American Journal of Roentgenology},
volume = {198},
issue = {3},
pages = {W266-W273},
publisher = {American Roentgen Ray Society},
abstract = {OBJECTIVE. The purpose of this study was to prospectively evaluate the accuracy of an augmented reality image overlay system in MRI-guided spinal injection procedures.
MATERIALS AND METHODS. An augmented reality prototype was used in conjunction with a 1.5-T MRI system. A human lumbar spine phantom was used in which 62 targets were punctured to assess the accuracy of the system. Sixty anatomic targets (facet joint, disk space, and spinal canal) were punctured to assess how the accuracy of the system translated into practice. A visualization software interface was used to compare planned needle paths and final needle locations on coregistered CT images (standard of reference). Outcome variables included entry error, angle error, depth error, target error, successful access of anatomic targets, number of needle adjustments, and time requirements.
RESULTS. Accuracy assessments showed …},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
MATERIALS AND METHODS. An augmented reality prototype was used in conjunction with a 1.5-T MRI system. A human lumbar spine phantom was used in which 62 targets were punctured to assess the accuracy of the system. Sixty anatomic targets (facet joint, disk space, and spinal canal) were punctured to assess how the accuracy of the system translated into practice. A visualization software interface was used to compare planned needle paths and final needle locations on coregistered CT images (standard of reference). Outcome variables included entry error, angle error, depth error, target error, successful access of anatomic targets, number of needle adjustments, and time requirements.
RESULTS. Accuracy assessments showed …
Fritz, Jan; U-Thainual, Paweena; Ungi, Tamas; Flammang, Aaron J; Fichtinger, Gabor; Iordachita, Iulian I; Carrino, John A
In: Radiology, vol. 265, iss. 1, pp. 254-259, 2012.
@article{fichtinger2012i,
title = {Augmented reality visualization with use of image overlay technology for MR imaging–guided interventions: assessment of performance in cadaveric shoulder and hip arthrography …},
author = {Jan Fritz and Paweena U-Thainual and Tamas Ungi and Aaron J Flammang and Gabor Fichtinger and Iulian I Iordachita and John A Carrino},
url = {https://pubs.rsna.org/doi/abs/10.1148/radiol.12112640},
year = {2012},
date = {2012-01-01},
journal = {Radiology},
volume = {265},
issue = {1},
pages = {254-259},
publisher = {Radiological Society of North America, Inc.},
abstract = {Purpose
To prospectively assess overlay technology in providing accurate and efficient targeting for magnetic resonance (MR) imaging–guided shoulder and hip joint arthrography.
Materials and Methods
A prototype augmented reality image overlay system was used in conjunction with a clinical 1.5-T MR imager. A total of 24 shoulder joint and 24 hip joint injections were planned in 12 human cadavers. Two operators (A and B) participated, each performing procedures on different cadavers using image overlay guidance. MR imaging was used to confirm needle positions, monitor injections, and perform MR arthrography. Accuracy was assessed according to the rate of needle adjustment, target error, and whether the injection was intraarticular. Efficiency was assessed according to arthrography procedural time. Operator differences were assessed with comparison of accuracy and procedure times between the …},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
To prospectively assess overlay technology in providing accurate and efficient targeting for magnetic resonance (MR) imaging–guided shoulder and hip joint arthrography.
Materials and Methods
A prototype augmented reality image overlay system was used in conjunction with a clinical 1.5-T MR imager. A total of 24 shoulder joint and 24 hip joint injections were planned in 12 human cadavers. Two operators (A and B) participated, each performing procedures on different cadavers using image overlay guidance. MR imaging was used to confirm needle positions, monitor injections, and perform MR arthrography. Accuracy was assessed according to the rate of needle adjustment, target error, and whether the injection was intraarticular. Efficiency was assessed according to arthrography procedural time. Operator differences were assessed with comparison of accuracy and procedure times between the …
Ungi, Tamas; U-Thainual, Paweena; Yeo, Caitlin T; Lasso, Andras; McGraw, Robert C; Fichtinger, Gabor
Perk Station image overlay improves training of facet joint injections Conference
4th NCIGT and NIH Image Guided Therapy Workshop, vol. 4, Arlington VA, October 12-13, 2011, 2011.
@conference{Ungi2011c,
title = {Perk Station image overlay improves training of facet joint injections},
author = {Tamas Ungi and Paweena U-Thainual and Caitlin T Yeo and Andras Lasso and Robert C McGraw and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Ungi-NCIGTWS2011-PerkStation_rev01.pdf},
year = {2011},
date = {2011-10-01},
urldate = {2011-10-01},
booktitle = {4th NCIGT and NIH Image Guided Therapy Workshop},
volume = {4},
pages = {118},
address = {Arlington VA, October 12-13, 2011},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
U-Thainual, Paweena; Ungi, Tamas; Carrino, John A; Fichtinger, Gabor; Iordachita, Iulian
MR Image Overlay Adjustable Plane System for Percutaneous Musculoskeletal Interventions Conference
4th NCIGT and NIH Image Guided Therapy Workshop, vol. 4, Arlington VA, October 12-13, 2011, 2011.
@conference{U-Thainual2011,
title = {MR Image Overlay Adjustable Plane System for Percutaneous Musculoskeletal Interventions},
author = {Paweena U-Thainual and Tamas Ungi and John A Carrino and Gabor Fichtinger and Iulian Iordachita},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/IGTworkshop2011_MR_IOAPS_poster_abstract_paweena.pdf},
year = {2011},
date = {2011-10-01},
urldate = {2011-10-01},
booktitle = {4th NCIGT and NIH Image Guided Therapy Workshop},
volume = {4},
address = {Arlington VA, October 12-13, 2011},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Fritz, Jan; U-Thainual, Paweena; Ungi, Tamas; Flammang, Aaron J; Cho, Nathan Bongjoon; Fichtinger, Gabor; Iordachita, Iulian; Carrino, John A
Augmented reality visualization using image-overlay for MR-guided interventions: assessment of accuracy for lumbar spinal procedures with a 1.5-Tesla MRI scanner Conference
CIRSE 2011, Munich, Germany, 2011.
@conference{Fritz2011,
title = {Augmented reality visualization using image-overlay for MR-guided interventions: assessment of accuracy for lumbar spinal procedures with a 1.5-Tesla MRI scanner},
author = {Jan Fritz and Paweena U-Thainual and Tamas Ungi and Aaron J Flammang and Nathan Bongjoon Cho and Gabor Fichtinger and Iulian Iordachita and John A Carrino},
year = {2011},
date = {2011-09-01},
urldate = {2011-09-01},
booktitle = {CIRSE 2011},
address = {Munich, Germany},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Yeo, Caitlin T; Ungi, Tamas; U-Thainual, Paweena; Lasso, Andras; McGraw, Robert C; Fichtinger, Gabor
The Effect of Augmented Reality Training on Percutaneous Needle Placement in Spinal Facet Joint Injections Journal Article
In: IEEE Transactions on Biomedical Engineering, vol. 58, pp. 2031-7, 2011, ISSN: 0018-9294.
@article{Yeo2011,
title = {The Effect of Augmented Reality Training on Percutaneous Needle Placement in Spinal Facet Joint Injections},
author = {Caitlin T Yeo and Tamas Ungi and Paweena U-Thainual and Andras Lasso and Robert C McGraw and Gabor Fichtinger},
url = {http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5739103&tag=1
https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Yeo2011.pdf},
doi = {10.1109/TBME.2011.2132131},
issn = {0018-9294},
year = {2011},
date = {2011-07-01},
urldate = {2011-07-01},
journal = {IEEE Transactions on Biomedical Engineering},
volume = {58},
pages = {2031-7},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Fritz, Jan; U-Thainual, Paweena; Ungi, Tamas; Flammang, Aaron J; Cho, Nathan Bongjoon; Fichtinger, Gabor; Iordachita, Iulian; Carrino, John A
RSNA 97th Scientific Assembly and Annual Meeting, Chicago, IL, 2011.
@conference{Fritz2011a,
title = {Augmented Reality Visualization Using Image-overlay for MR-guided Interventions: Assessment of Performance in Cadaveric Shoulder and Hip Arthrography},
author = {Jan Fritz and Paweena U-Thainual and Tamas Ungi and Aaron J Flammang and Nathan Bongjoon Cho and Gabor Fichtinger and Iulian Iordachita and John A Carrino},
url = {http://radiology.rsna.org/content/early/2012/07/24/radiol.12112640.abstract
https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/254.full_.pdf},
doi = {10.1148/radiol.12112640},
year = {2011},
date = {2011-07-01},
urldate = {2011-07-01},
booktitle = {RSNA 97th Scientific Assembly and Annual Meeting},
address = {Chicago, IL},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Ungi, Tamas; Yeo, Caitlin T; U-Thainual, Paweena; McGraw, Robert C; Fichtinger, Gabor
Augmented Reality Needle Guidance Improves Facet Joint Injection Training Conference
SPIE Medical Imaging, vol. 7964, no. 1, SPIE SPIE, Lake Buena Vista, Florida, USA, 2011.
@conference{Ungi2011b,
title = {Augmented Reality Needle Guidance Improves Facet Joint Injection Training},
author = {Tamas Ungi and Caitlin T Yeo and Paweena U-Thainual and Robert C McGraw and Gabor Fichtinger},
url = {http://link.aip.org/link/?PSI/7964/79642E/1
https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Ungi2011b.pdf},
doi = {10.1117/12.877830},
year = {2011},
date = {2011-03-01},
urldate = {2011-03-01},
booktitle = {SPIE Medical Imaging},
volume = {7964},
number = {1},
pages = {79642E 1-7},
publisher = {SPIE},
address = {Lake Buena Vista, Florida, USA},
organization = {SPIE},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Ungi, Tamas; U-Thainual, Paweena; Lasso, Andras; Yeo, Caitlin T; McGraw, Robert C; Fichtinger, Gabor
Augmented reality training to improve needle-based percutaneous interventions Conference
ImNO2011 - Imaging Network Ontario Symposium, Toronto, ON, Canada, Jan 31-Feb 1, 2011.
@conference{Ungi2011a,
title = {Augmented reality training to improve needle-based percutaneous interventions},
author = {Tamas Ungi and Paweena U-Thainual and Andras Lasso and Caitlin T Yeo and Robert C McGraw and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Ungi2011a.pdf},
year = {2011},
date = {2011-01-01},
urldate = {2011-01-01},
booktitle = {ImNO2011 - Imaging Network Ontario Symposium},
address = {Toronto, ON, Canada, Jan 31-Feb 1},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
U-Thainual, Paweena; Fritz, Jan; Cho, Nathan Bongjoon; Ungi, Tamas; Segundo, AJM; Carrino, John A; Fichtinger, Gabor; Lewin, JS; Iordachita, Iulian
Evaluation of accuracy and clinical feasibility of the MR-compatible image overlay Conference
8th Interventional MRI Symposium, Leipzig, Germany, September 24-25, 2010, 2010.
@conference{U-Thainual2010,
title = {Evaluation of accuracy and clinical feasibility of the MR-compatible image overlay},
author = {Paweena U-Thainual and Jan Fritz and Nathan Bongjoon Cho and Tamas Ungi and AJM Segundo and John A Carrino and Gabor Fichtinger and JS Lewin and Iulian Iordachita},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/8th-Interventional-MRI-Symposium_Abstract_paweena.pdf
https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/8th_iMRI_poster_paweena_Final.pdf},
year = {2010},
date = {2010-01-01},
urldate = {2010-01-01},
booktitle = {8th Interventional MRI Symposium},
address = {Leipzig, Germany, September 24-25, 2010},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Pompeu-Robinson, Alexandra M.; Gray, James; Marble, Joshua; Peikari, Hamed; Hall, Jena; U-Thainual, Paweena; Aboofazeli, Mohammad; Lasso, Andras; Fichtinger, Gabor
Validation platform for ultrasound-based monitoring of thermal ablation Conference
SPIE - Medical Imaging, San Diego, 2010.
@conference{Pompeu-Robinson2010,
title = {Validation platform for ultrasound-based monitoring of thermal ablation},
author = {Alexandra M. Pompeu-Robinson and James Gray and Joshua Marble and Hamed Peikari and Jena Hall and Paweena U-Thainual and Mohammad Aboofazeli and Andras Lasso and Gabor Fichtinger},
doi = {10.1117/12.844053},
year = {2010},
date = {2010-01-01},
booktitle = {SPIE - Medical Imaging},
address = {San Diego},
abstract = {<p>PURPOSE: A ground-truth validation platform was developed to provide spatial correlation between ultrasound (US), temperature measurements and histopathology images to validate US based thermal ablation monitoring methods. METHOD: The test-bed apparatus consists of a container box with integrated fiducial lines. Tissue samples are suspended within the box using agar gel as the fixation medium. Following US imaging, the gel block is sliced and pathology images are acquired. Interactive software segments the fiducials as well as structures of interest in the pathology and US images. The software reconstructs the regions in 3D space and performs analysis and comparison of the features identified from both imaging modalities. RESULTS: The apparatus and software were constructed to meet technical requirements. Tissue samples were contoured, reconstructed and registered in the common coordinate system of fiducials. There was agreement between the sample shapes, but systematic shift of several millimeters was found between histopathology and US. This indicates that during pathology slicing shear forces tend to dislocate the fiducial lines. Softer fiducial lines and harder gel material can eliminate this problem. CONCLUSION: Viability of concept was presented. Despite our straightforward approach, further experimental work is required to optimize all materials and customize software.</p>},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Vikal, Siddharth; U-Thainual, Paweena; Carrino, John A; Iordachita, Iulian; Fischer, Gregory; Fichtinger, Gabor
Perk Station-Percutaneous surgery training and performance measurement platform Journal Article
In: Computerized Medical Imaging and Graphics, vol. 34, pp. 19-32, 2009.
@article{Vikal2009a,
title = {Perk Station-Percutaneous surgery training and performance measurement platform},
author = {Siddharth Vikal and Paweena U-Thainual and John A Carrino and Iulian Iordachita and Gregory Fischer and Gabor Fichtinger},
url = {http://dx.doi.org/10.1016/j.compmedimag.2009.05.001
https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Vikal2009a.pdf},
doi = {10.1016/j.compmedimag.2009.05.001},
year = {2009},
date = {2009-05-01},
urldate = {2009-05-01},
journal = {Computerized Medical Imaging and Graphics},
volume = {34},
pages = {19-32},
abstract = {<p>MOTIVATION: Image-guided percutaneous (through the skin) needle-based surgery has become part of routine clinical practice in performing procedures such as biopsies, injections, therapeutic implants A novice physician typically performs needle interventions under the supervision of a senior physician; a slow, inherently subjective training process that lacks objective, quantitative assessment of the surgical skill, performance Shortening the learning curve, increasing procedural consistency are important factors in assuring high-quality medical care METHODS: This paper describes a laboratory validation system, called Perk Station, for standardized training, performance measurement under different assistance techniques for needle-based surgical guidance systems The initial goal of the Perk Station is to assess, compare different techniques: 2D image overlay, biplane laser guide, laser protractor, conventional freehand The main focus of this manuscript is the planning, guidance software system developed on the 3D Slicer platform, a free, open source software package designed for visualization, analysis of medical image data RESULTS: The prototype Perk Station has been successfully developed, the associated needle insertion phantoms were built, and the graphical user interface was fully implemented The system was inaugurated in undergraduate teaching, a wide array of outreach activities Initial results, experiences, ongoing activities, future plans are reported</p>},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
U-Thainual, Paweena; Fischer, Gregory; Iordachita, Iulian; Vikal, Siddharth; Fichtinger, Gabor
The Perk Station: Systems design for percutaneous intervention training suite Conference
Procedings IEEE International Conference on Robotics and Biomimetics ROBIO 2009, Bangkok, Thailand, 2009.
@conference{U-Thainual2009a,
title = {The Perk Station: Systems design for percutaneous intervention training suite},
author = {Paweena U-Thainual and Gregory Fischer and Iulian Iordachita and Siddharth Vikal and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/U-Thainual2009a.pdf},
doi = {10 1109/ROBIO 2009 4913256},
year = {2009},
date = {2009-02-01},
urldate = {2009-02-01},
booktitle = {Procedings IEEE International Conference on Robotics and Biomimetics ROBIO 2009},
pages = {1693–1697},
address = {Bangkok, Thailand},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
U-Thainual, Paweena; Iordachita, Iulian; Vikal, Siddharth; Fichtinger, Gabor
Teaching Aid for Computer-Assisted Surgery Conference
Eastern Ontario Symposium for Educational Technology, 2009.
@conference{U-Thainual2009,
title = {Teaching Aid for Computer-Assisted Surgery},
author = {Paweena U-Thainual and Iulian Iordachita and Siddharth Vikal and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/EOSET2009_The-Perk-Station-abstract.pdf},
year = {2009},
date = {2009-01-01},
urldate = {2009-01-01},
booktitle = {Eastern Ontario Symposium for Educational Technology},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
U-Thainual, Paweena; Iordachita, Iulian; Fichtinger, Gabor
The Perk Station: Design of a percutaneous intervention training suite Conference
20th International Conference of the Society for Medical Innovation and Technology (SMIT), Vienna, Austria, August 28-31, 2008, ISBN: 3-902087-25-0.
@conference{U-Thainual2008b,
title = {The Perk Station: Design of a percutaneous intervention training suite},
author = {Paweena U-Thainual and Iulian Iordachita and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/U-Thainual2008b.pdf},
isbn = {3-902087-25-0},
year = {2008},
date = {2008-08-01},
urldate = {2008-08-01},
booktitle = {20th International Conference of the Society for Medical Innovation and Technology (SMIT)},
pages = {148-153},
address = {Vienna, Austria, August 28-31},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Ahmidi, Narges; U-Thainual, Paweena; Vikal, Siddharth; Mousavi, Parvin; Iordachita, Iulian; Fichtinger, Gabor
A System for Performance Analysis of Surgeon Dexterity in Percutaneous Needle-based Interventions Conference
7th Imaging Symposium of the Imaging Network of Ontario, 2008.
@conference{Ahmidi2008,
title = {A System for Performance Analysis of Surgeon Dexterity in Percutaneous Needle-based Interventions},
author = {Narges Ahmidi and Paweena U-Thainual and Siddharth Vikal and Parvin Mousavi and Iulian Iordachita and Gabor Fichtinger},
year = {2008},
date = {2008-01-01},
urldate = {2008-01-01},
booktitle = {7th Imaging Symposium of the Imaging Network of Ontario},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
U-Thainual, Paweena; Fischer, Gregory; Carrino, John A; Fichtinger, Gabor; Iordachita, Iulian
MR/CT Percutaneous Intervention Training Suite Conference
7th International Symposium on Interventional MRI, 2008.
@conference{U-Thainual2008,
title = {MR/CT Percutaneous Intervention Training Suite},
author = {Paweena U-Thainual and Gregory Fischer and John A Carrino and Gabor Fichtinger and Iulian Iordachita},
year = {2008},
date = {2008-01-01},
urldate = {2008-01-01},
booktitle = {7th International Symposium on Interventional MRI},
pages = {81-85},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Fischer, Gregory; Iordachita, Iulian; U-Thainual, Paweena; Carrino, John A; Fichtinger, Gabor
A Training Suite for Image Overlay and Other Needle Insertion Techniques Conference
2008 MICCAI Workshop - Augmented Environments for Medical Imaging and Computer-Aided Surgery (AMI-ARCS), 2008.
@conference{Fischer2008c,
title = {A Training Suite for Image Overlay and Other Needle Insertion Techniques},
author = {Gregory Fischer and Iulian Iordachita and Paweena U-Thainual and John A Carrino and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Fischer2008c.pdf},
year = {2008},
date = {2008-01-01},
urldate = {2008-01-01},
booktitle = {2008 MICCAI Workshop - Augmented Environments for Medical Imaging and Computer-Aided Surgery (AMI-ARCS)},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
U-Thainual, Paweena; Vikal, Siddharth; Iordachita, Iulian; Fichtinger, Gabor
The Perk Station: Portable training station for percutaneous interventions Conference
Orthopaedic Care Conference, 2008.
@conference{U-Thainual2008a,
title = {The Perk Station: Portable training station for percutaneous interventions},
author = {Paweena U-Thainual and Siddharth Vikal and Iulian Iordachita and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/U-Thainual2008a.pdf},
year = {2008},
date = {2008-01-01},
urldate = {2008-01-01},
booktitle = {Orthopaedic Care Conference},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}