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Characterizing the learning curve of the VBLaST-PT.sup.(c) (Virtual Basic Laparoscopic Skill Trainer)

Zhang, Likun ; Sankaranarayanan, Ganesh ; Arikatla, Venkata Sreekanth ; Ahn, Woojin ; Grosdemouge, Cristol ; Rideout, Jesse M. ; Epstein, Scott K. ; De, Suvranu ; Schwaitzberg, Steven D. ; Jones, Daniel B. ; Cao, Caroline G. L.

Surgical Endoscopy, Oct, 2013, Vol.27(10), p.3603(13) [Tạp chí có phản biện]

ISSN: 0930-2794

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  • Nhan đề:
    Characterizing the learning curve of the VBLaST-PT.sup.(c) (Virtual Basic Laparoscopic Skill Trainer)
  • Tác giả: Zhang, Likun ; Sankaranarayanan, Ganesh ; Arikatla, Venkata Sreekanth ; Ahn, Woojin ; Grosdemouge, Cristol ; Rideout, Jesse M. ; Epstein, Scott K. ; De, Suvranu ; Schwaitzberg, Steven D. ; Jones, Daniel B. ; Cao, Caroline G. L.
  • Chủ đề: Laparoscopy
  • Là 1 phần của: Surgical Endoscopy, Oct, 2013, Vol.27(10), p.3603(13)
  • Mô tả: Byline: Likun Zhang (1), Ganesh Sankaranarayanan (2), Venkata Sreekanth Arikatla (2), Woojin Ahn (2), Cristol Grosdemouge (1), Jesse M. Rideout (3), Scott K. Epstein (3), Suvranu De (2), Steven D. Schwaitzberg (5), Daniel B. Jones (4), Caroline G. L. Cao (1,5,6) Keywords: Learning curve; Cumulative summation; CUSUM; Virtual reality; Surgical training; Convergent validity Abstract: Background Mastering laparoscopic surgical skills requires considerable time and effort. The Virtual Basic Laparoscopic Skill Trainer (VBLaST-PT.sup.(c)) is being developed as a computerized version of the peg transfer task of the Fundamentals of Laparoscopic Surgery (FLS) system using virtual reality technology. We assessed the learning curve of trainees on the VBLaST-PT.sup.(c) using the cumulative summation (CUSUM) method and compared them with those on the FLS to establish convergent validity for the VBLaST-PT.sup.(c). Methods Eighteen medical students from were assigned randomly to one of three groups: control, VBLaST-training, and FLS-training. The VBLaST and the FLS groups performed a total of 150 trials of the peg-transfer task over a 3-week period, 5 days a week. Their CUSUM scores were computed based on predefined performance criteria (junior, intermediate, and senior levels). Results Of the six subjects in the VBLaST-training group, five achieved at least the "junior" level, three achieved the "intermediate" level, and one achieved the "senior" level of performance criterion by the end of the 150 trials. In comparison, for the FLS group, three students achieved the "senior" criterion and all six students achieved the "intermediate" and "junior" criteria by the 150th trials. Both the VBLaST-PT.sup.(c) and the FLS systems showed significant skill improvement and retention, albeit with system specificity as measured by transfer of learning in the retention test: The VBLaST-trained group performed better on the VBLaST-PT.sup.(c) than on FLS (p = 0.003), whereas the FLS-trained group performed better on the FLS than on VBLaST-PT.sup.(c) (p = 0.002). Conclusions We characterized the learning curve for a virtual peg transfer task on the VBLaST-PT.sup.(c) and compared it with the FLS using CUSUM analysis. Subjects in both training groups showed significant improvement in skill performance, but the transfer of training between systems was not significant. Author Affiliation: (1) Department of Mechanical Engineering, Tufts University, Medford, MA, USA (2) Center for Modeling, Simulation and Imaging in Medicine, Rensselaer Polytechnic Institute, Troy, NY, USA (3) School of Medicine, Tufts University, Boston, MA, USA (4) Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA (5) Department of Surgery, Cambridge Health Alliance, Harvard Medical School, Boston, MA, USA (6) Department of Biomedical, Industrial and Human Factors Engineering, Wright State University, Dayton, OH, 45435, USA Article History: Registration Date: 15/03/2013 Received Date: 20/07/2012 Accepted Date: 11/03/2013 Online Date: 10/04/2013
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 0930-2794

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