Sean Xia
Medical Student
School of Medicine
Queen's University
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}
}
Holden, M.; Lia, H.; Xia, Sean; Keri, Zsuzsanna; Ungi, Tamas; Fichtinger, Gabor
Configurable Overall Skill Assessment in Ultrasound-Guided Needle Insertion Conference
16th Annual Imaging Network Ontario Symposium (ImNO), Toronto, Canada, 2018.
@conference{Holden2018b,
title = {Configurable Overall Skill Assessment in Ultrasound-Guided Needle Insertion},
author = {M. Holden and H. Lia and Sean Xia and Zsuzsanna Keri and Tamas Ungi and Gabor Fichtinger},
url = {https://labs.cs.queensu.ca/perklab/wp-content/uploads/sites/3/2024/02/Holden2018b.pdf},
year = {2018},
date = {2018-03-01},
urldate = {2018-03-01},
booktitle = {16th Annual Imaging Network Ontario Symposium (ImNO)},
address = {Toronto, Canada},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
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 …