Hillary Lia
Undergraduate Student
School of Computing
Queen's University
Lemke, Madeline; Lia, Hillary; Gabinet-Equihua, Alexander; Sheahan, Guy; Winthrop, Andrea; Mann, Stephen; Fichtinger, Gabor; Zevin, Boris
In: Surgical endoscopy, vol. 34, pp. 1678-1687, 2020.
@article{fichtinger2020d,
title = {Optimizing resource utilization during proficiency-based training of suturing skills in medical students: a randomized controlled trial of faculty-led, peer tutor-led, and …},
author = {Madeline Lemke and Hillary Lia and Alexander Gabinet-Equihua and Guy Sheahan and Andrea Winthrop and Stephen Mann and Gabor Fichtinger and Boris Zevin},
url = {https://link.springer.com/article/10.1007/s00464-019-06944-2},
year = {2020},
date = {2020-01-01},
journal = {Surgical endoscopy},
volume = {34},
pages = {1678-1687},
publisher = {Springer US},
abstract = {Background Suturing is a fundamental skill in undergraduate medical education. It can be taught by faculty-led, peer tutor-led, and holography-augmented methods; however, the most educationally effective and cost-efficient method for proficiency-based teaching of suturing is yet to be determined. Methods We conducted a randomized controlled trial comparing faculty-led, peer tutor-led, and holography-augmented proficiency-based suturing training in pre-clerkship medical students. Holography-augmented training provided holographic, voice-controlled instructional material. Technical skill was assessed using hand motion analysis every ten sutures and used to construct learning curves. Proficiency was defined by one standard deviation within average faculty surgeon performance. Intervention arms were compared using one-way ANOVA of the number of sutures placed, full-length sutures used, time to …},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Background Suturing is a fundamental skill in undergraduate medical education. It can be taught by faculty-led, peer tutor-led, and holography-augmented methods; however, the most educationally effective and cost-efficient method for proficiency-based teaching of suturing is yet to be determined. Methods We conducted a randomized controlled trial comparing faculty-led, peer tutor-led, and holography-augmented proficiency-based suturing training in pre-clerkship medical students. Holography-augmented training provided holographic, voice-controlled instructional material. Technical skill was assessed using hand motion analysis every ten sutures and used to construct learning curves. Proficiency was defined by one standard deviation within average faculty surgeon performance. Intervention arms were compared using one-way ANOVA of the number of sutures placed, full-length sutures used, time to …
Holden, Matthew S.; Xia, Sean; Lia, Hillary; Keri, Zsuzsanna; Bell, Colin; Patterson, Lindsey; Ungi, Tamas; Fichtinger, Gabor
Machine learning methods for automated technical skills assessment with instructional feedback in ultrasound-guided interventions Journal Article
In: Int J CARS, vol. 14, no. 11, pp. 1993–2003, 2019, ISSN: 1861-6429.
@article{Holden2019,
title = {Machine learning methods for automated technical skills assessment with instructional feedback in ultrasound-guided interventions},
author = {Matthew S. Holden and Sean Xia and Hillary Lia and Zsuzsanna Keri and Colin Bell and Lindsey Patterson and Tamas Ungi and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/01/Holden2019a-manuscript-2.pdf
https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/01/Holden2019a-2.pdf},
doi = {10.1007/s11548-019-01977-3},
issn = {1861-6429},
year = {2019},
date = {2019-01-01},
urldate = {2019-01-01},
journal = {Int J CARS},
volume = {14},
number = {11},
pages = {1993--2003},
publisher = {Springer Science and Business Media LLC},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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 …
Lia, Hillary; Paulin, Gregory; Yeo, Caitlin T; Andrews, Jessica; Yi, Nelson; Haq, Hassan; Emmanuel, Steve; Ludig, Kristian; Keri, Zsuzsanna; Lasso, Andras; Fichtinger, Gabor
HoloLens in suturing training Journal Article
In: vol. 10576, pp. 544-550, 2018.
@article{fichtinger2018g,
title = {HoloLens in suturing training},
author = {Hillary Lia and Gregory Paulin and Caitlin T Yeo and Jessica Andrews and Nelson Yi and Hassan Haq and Steve Emmanuel and Kristian Ludig and Zsuzsanna Keri and Andras Lasso and Gabor Fichtinger},
url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10576/1057628/HoloLens-in-suturing-training/10.1117/12.2293934.short},
year = {2018},
date = {2018-01-01},
volume = {10576},
pages = {544-550},
publisher = {SPIE},
abstract = {PURPOSE
A training module for basic suturing training called Suture Tutor was developed by combining video instruction and voice commands with the Microsoft HoloLens software. We put forth two hypotheses: Trainees find the HoloLens helpful and 2.) HoloLens helps the trainees to achieve a better score in objective skill assessment tests.
METHODS
Software module was developed to show instructional video in the HoloLens under voice command. Thirtytwo participants were split into the control group or the HoloLens group. The control group used videos displayed on a computer during training while the HoloLens group practiced with Suture Tutor. Each group was given seven minutes to train with their assigned training method before testing. Testing involved replication of a running locking suturing pattern with a time limit of five minutes and was video recorded. The videos were expert reviewed. Participants …},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
PURPOSE
A training module for basic suturing training called Suture Tutor was developed by combining video instruction and voice commands with the Microsoft HoloLens software. We put forth two hypotheses: Trainees find the HoloLens helpful and 2.) HoloLens helps the trainees to achieve a better score in objective skill assessment tests.
METHODS
Software module was developed to show instructional video in the HoloLens under voice command. Thirtytwo participants were split into the control group or the HoloLens group. The control group used videos displayed on a computer during training while the HoloLens group practiced with Suture Tutor. Each group was given seven minutes to train with their assigned training method before testing. Testing involved replication of a running locking suturing pattern with a time limit of five minutes and was video recorded. The videos were expert reviewed. Participants …
A training module for basic suturing training called Suture Tutor was developed by combining video instruction and voice commands with the Microsoft HoloLens software. We put forth two hypotheses: Trainees find the HoloLens helpful and 2.) HoloLens helps the trainees to achieve a better score in objective skill assessment tests.
METHODS
Software module was developed to show instructional video in the HoloLens under voice command. Thirtytwo participants were split into the control group or the HoloLens group. The control group used videos displayed on a computer during training while the HoloLens group practiced with Suture Tutor. Each group was given seven minutes to train with their assigned training method before testing. Testing involved replication of a running locking suturing pattern with a time limit of five minutes and was video recorded. The videos were expert reviewed. Participants …
Xia, Sean; Keri, Zsuzsanna; Holden, Matthew S; Hisey, Rebecca; Lia, Hillary; Ungi, Tamas; Mitchell, Christopher H; Fichtinger, Gabor
A learning curve analysis of ultrasound-guided in-plane and out-of-plane vascular access training with Perk Tutor Journal Article
In: vol. 10576, pp. 512-519, 2018.
@article{fichtinger2018i,
title = {A learning curve analysis of ultrasound-guided in-plane and out-of-plane vascular access training with Perk Tutor},
author = {Sean Xia and Zsuzsanna Keri and Matthew S Holden and Rebecca Hisey and Hillary Lia and Tamas Ungi and Christopher H Mitchell and Gabor Fichtinger},
url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10576/1057625/A-learning-curve-analysis-of-ultrasound-guided-in-plane-and/10.1117/12.2293789.short},
year = {2018},
date = {2018-01-01},
volume = {10576},
pages = {512-519},
publisher = {SPIE},
abstract = {PURPOSE
Under ultrasound guidance, procedures that have been traditionally performed using landmark approaches have become safer and more efficient. However, inexperienced trainees struggle with coordinating probe handling and needle insertion. We aimed to establish learning curves to identify the rate of acquisition of in-plane and out-of-plane vascular access skill in novice medical trainees.
METHODS
Thirty-eight novice participants were randomly assigned to perform either in-plane or out-of-plane insertions. Participants underwent baseline testing, four practice insertions (with 3D visualization assistance), and final testing; performance metrics were computed for all procedures. Five expert participants performed insertions in both approaches to establish expert performance metric benchmarks.
RESULTS In-plane novices (n=19) demonstrated significant final reductions in needle path inefficiency (45.8 …},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
PURPOSE
Under ultrasound guidance, procedures that have been traditionally performed using landmark approaches have become safer and more efficient. However, inexperienced trainees struggle with coordinating probe handling and needle insertion. We aimed to establish learning curves to identify the rate of acquisition of in-plane and out-of-plane vascular access skill in novice medical trainees.
METHODS
Thirty-eight novice participants were randomly assigned to perform either in-plane or out-of-plane insertions. Participants underwent baseline testing, four practice insertions (with 3D visualization assistance), and final testing; performance metrics were computed for all procedures. Five expert participants performed insertions in both approaches to establish expert performance metric benchmarks.
RESULTS In-plane novices (n=19) demonstrated significant final reductions in needle path inefficiency (45.8 …
Under ultrasound guidance, procedures that have been traditionally performed using landmark approaches have become safer and more efficient. However, inexperienced trainees struggle with coordinating probe handling and needle insertion. We aimed to establish learning curves to identify the rate of acquisition of in-plane and out-of-plane vascular access skill in novice medical trainees.
METHODS
Thirty-eight novice participants were randomly assigned to perform either in-plane or out-of-plane insertions. Participants underwent baseline testing, four practice insertions (with 3D visualization assistance), and final testing; performance metrics were computed for all procedures. Five expert participants performed insertions in both approaches to establish expert performance metric benchmarks.
RESULTS In-plane novices (n=19) demonstrated significant final reductions in needle path inefficiency (45.8 …
Holden, Matthew S; Lia, Hillary; Xia, Sean; Keri, Zsuzsanna; Ungi, Tamas; Fichtinger, Gabor
Configurable overall skill assessment in ultrasound-guided needle insertion Journal Article
In: 16th annual imaging network Ontario symposium (ImNO), 2018.
@article{fichtinger2018m,
title = {Configurable overall skill assessment in ultrasound-guided needle insertion},
author = {Matthew S Holden and Hillary Lia and Sean Xia and Zsuzsanna Keri and Tamas Ungi and Gabor Fichtinger},
url = {http://perk.cs.queensu.ca/sites/perkd7.cs.queensu.ca/files/Holden2018b.pdf},
year = {2018},
date = {2018-01-01},
journal = {16th annual imaging network Ontario symposium (ImNO)},
abstract = {METHODS: We implemented three configurable and transparent methods for overall skill assessment. The first method uses a weighted combination of percentile ranked metric values, where the weight associated with each performance metric is configurable. The second method uses a k-nearest neighbours approach, where the scale in each dimension of metric space is configurable. The third method uses a fuzzy inference system with kernel density estimates as the membership functions, where the user may add, remove, or weight fuzzy different if-then rules. These methods were all implemented within the Perk Tutor platform ( www. perktutor. org) which allows the input performance metrics and parameters to be configured. Furthermore, these methods are connected directly to the training system to provide immediate feedback.
We conducted a retrospective validation study to compare the accuracy of skill …},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
METHODS: We implemented three configurable and transparent methods for overall skill assessment. The first method uses a weighted combination of percentile ranked metric values, where the weight associated with each performance metric is configurable. The second method uses a k-nearest neighbours approach, where the scale in each dimension of metric space is configurable. The third method uses a fuzzy inference system with kernel density estimates as the membership functions, where the user may add, remove, or weight fuzzy different if-then rules. These methods were all implemented within the Perk Tutor platform ( www. perktutor. org) which allows the input performance metrics and parameters to be configured. Furthermore, these methods are connected directly to the training system to provide immediate feedback.
We conducted a retrospective validation study to compare the accuracy of skill …
We conducted a retrospective validation study to compare the accuracy of skill …