REGULAR CONTENT
Final ID
439
Type
Original Scientific Research-Oral or Pos
Authors
V Becerra1, C Molloy2, C Lam2
Institutions
1FIU Herbert Wertheim College of Medicine, Miami, FL, 2Kaiser Permanente Los Angeles Medical Center, Los Angeles, CA
Purpose
A fundamental challenge that interventional trainees face is developing the technical 'hand skills' to skillfully manipulate endovascular devices. Traditionally, trainees improve their skills by practicing on live patients.This study demonstrates the feasibility of 3D printed model simulation in improving endovascular technical skills.
Materials & Methods
A 3D printed model of the circle of Willis vasculature, developed from DICOM CT imaging, was printed by a 3rd party vendor (Florida International University College of Engineering: Advanced Materials Engineering Research Institute; Miami, FL). Study participants were timed on four sequential attempts navigating a 0.035' glidewire and a 5F angled glide catheter through a predetermined segment of the right middle cerebral artery (MCA) of the vascular model. The overall procedural task time (PTT) was considered a surrogate to evaluate for endovascular technique improvement. Participants were recruited from a single center comprising of medical students, radiology residents & attending physicians.
Results
11 participants in total completed the circle of Willis simulation. The average initial time to navigate the right MCA was 26.7 seconds (s) ±11.8s Standard Deviation (SD). The average final time to navigate the right MCA on the fourth attempt was 9.6s ±5.9s SD. This demonstrated an average improvement of 17.1s in PTT with a p-value of 0.0009.Data from additional participants will be accrued prior to March 2017 and included on further iterations of this study.
Conclusions
This study demonstrates after only 4 attempts to navigate the right MCA, participants demonstrated significantly improved procedural task time, which is considered a surrogate for improved endovascular technique. Similar 3D simulation may be used to further improve trainee techniques on specific skills including: navigating up & over the iliac bifurcation, sub-selection of visceral vessels, & forming Waltman loops. 3D simulations safely and quickly enable trainees to become comfortable with procedural steps, develop muscle memory, improve hand skills & familiarity with various endovascular equipment capabilities; all with zero risk, before puncturing the skin of live patients.
Final ID
439
Type
Original Scientific Research-Oral or Pos
Authors
V Becerra1, C Molloy2, C Lam2
Institutions
1FIU Herbert Wertheim College of Medicine, Miami, FL, 2Kaiser Permanente Los Angeles Medical Center, Los Angeles, CA
Purpose
A fundamental challenge that interventional trainees face is developing the technical 'hand skills' to skillfully manipulate endovascular devices. Traditionally, trainees improve their skills by practicing on live patients.This study demonstrates the feasibility of 3D printed model simulation in improving endovascular technical skills.
Materials & Methods
A 3D printed model of the circle of Willis vasculature, developed from DICOM CT imaging, was printed by a 3rd party vendor (Florida International University College of Engineering: Advanced Materials Engineering Research Institute; Miami, FL). Study participants were timed on four sequential attempts navigating a 0.035' glidewire and a 5F angled glide catheter through a predetermined segment of the right middle cerebral artery (MCA) of the vascular model. The overall procedural task time (PTT) was considered a surrogate to evaluate for endovascular technique improvement. Participants were recruited from a single center comprising of medical students, radiology residents & attending physicians.
Results
11 participants in total completed the circle of Willis simulation. The average initial time to navigate the right MCA was 26.7 seconds (s) ±11.8s Standard Deviation (SD). The average final time to navigate the right MCA on the fourth attempt was 9.6s ±5.9s SD. This demonstrated an average improvement of 17.1s in PTT with a p-value of 0.0009.Data from additional participants will be accrued prior to March 2017 and included on further iterations of this study.
Conclusions
This study demonstrates after only 4 attempts to navigate the right MCA, participants demonstrated significantly improved procedural task time, which is considered a surrogate for improved endovascular technique. Similar 3D simulation may be used to further improve trainee techniques on specific skills including: navigating up & over the iliac bifurcation, sub-selection of visceral vessels, & forming Waltman loops. 3D simulations safely and quickly enable trainees to become comfortable with procedural steps, develop muscle memory, improve hand skills & familiarity with various endovascular equipment capabilities; all with zero risk, before puncturing the skin of live patients.