@article {Holden2019a, title = {Machine learning methods for automated technical skills assessment with instructional feedback in ultrasound-guided interventions}, journal = {International Journal of Computer Assisted Radiology and Surgery}, year = {In Press}, doi = {https://doi.org/10.1007/s11548-019-01977-3}, author = {M. Holden and Sean Xia and H. Lia and Keri, Zsuzsanna and Colin Bell and Lindsey Patterson and Tamas Ungi and Gabor Fichtinger} } @conference {Perrin2019a, title = {Reproducibility of freehand calibrations for ultrasound-guided needle navigation}, booktitle = {SPIE Medical Imaging 2019: Image-Guided Procedures, Robotic Interventions, and Modeling}, volume = {10951}, year = {2019}, address = {San Diego, California}, author = {Sydney Perrin and Zachary M C Baum and Mark Asselin and Underwood, Grace and Saleh Choueib and H. Lia and Tamas Ungi and Andras Lasso and Gabor Fichtinger} } @article {Lia2019a, title = {Usability and accuracy of an electromagnetically tracked partial nephrectomy navigation system}, year = {2019}, month = {03/2019}, author = {H. Lia and Zachary M C Baum and Thomas Vaughan and Tamas Ungi and McGregor, T. and Gabor Fichtinger} } @article {Lia2018b, title = {Basic suturing training using Microsoft HoloLens}, year = {2018}, month = {03/2018}, address = {Toronto, ON}, author = {H. Lia and Paulin, Gregory and Yeo, Caitlin T and Andrews, Jessica and Yi, Nelson and Haq, Hassan and Emmanuel, Steve and Ludig, Kristian and Keri, Zsuzsanna and Andras Lasso and Gabor Fichtinger} } @article {Holden2018b, title = {Configurable Overall Skill Assessment in Ultrasound-Guided Needle Insertion}, year = {2018}, month = {03/2018}, address = {Toronto, Canada}, author = {M. Holden and H. Lia and Sean Xia and Keri, Zsuzsanna and Tamas Ungi and Gabor Fichtinger} } @conference {Lia2018a, title = {HoloLens in Suturing Training}, booktitle = {SPIE Medical Imaging 2018: Image-Guided Procedures, Robotic Interventions, and Modeling}, year = {2018}, month = {03/2018}, address = {Houston, Texas}, author = {H. Lia and Paulin, Gregory and Yeo, Caitlin T and Andrews, Jessica and Yi, Nelson and Haq, Hassan and Emmanuel, Steve and Ludig, Kristian and Keri, Zsuzsanna and Andras Lasso and Gabor Fichtinger} } @conference {Lia2017, title = {Training with Perk Tutor improves ultrasound-guided in-plane needle insertion skill}, booktitle = {SPIE Medical Imaging}, volume = {10135}, year = {2017}, address = {Orlando, FL}, abstract = {

PURPOSE: The open-source Perk Tutor training platform has been shown to improve trainee performance in interventions that require ultrasound guidance. Our goal was to determine if needle coordination of medical trainees can be improved by training with Perk Tutor compared to training with ultrasound only.\ 

METHODS: Twenty participants with no previous experience were randomized into two groups; the Perk Tutor group and the Control group. The Perk Tutor group had access to the 3D visualization while the Control group used ultrasound only during their training. Performance was analyzed, measured and compared by Perk Tutor with regards to four needle coordination metrics. None of the groups had access to 3D visualization during performance testing.\ 

RESULTS: The needle tracking measurements showed, for the Perk Tutor group, lower average distance between the needle tip and ultrasound (1.2 [0.9 {\textendash} 2.8] mm vs 2.7 [2.3 {\textendash} 4.0] mm, respectively; P = 0.023) and lower maximum distance between the needle tip and ultrasound (2.2 [1.9 {\textendash} 3.2] mm vs 4.6 [3.9 {\textendash} 6.2] mm, respectively; P = 0.013). There was no significant difference in average needle to ultrasound plane angle and maximum needle to ultrasound plane distance. All participants were successful in the procedure.\ 

CONCLUSION: The Perk Tutor group had significantly reduced distance from the needle tip to the ultrasound plane. Training with Perk Tutor can improve trainees{\textquoteright} needle and ultrasound coordination.\ 

}, author = {H. Lia and Keri, Zsuzsanna and M. Holden and Vinyas Harish and Mitchell, Christopher H and Tamas Ungi and Gabor Fichtinger} }