title: Objective performance measures using motion sensors on an endoscopic tool for evaluating skills in natural orifice translumenal endoscopic surgery (NOTES).
abstract: Natural orifice translumenal endoscopic surgery is an emerging procedure. High fidelity virtual reality-based simulators allow development of new surgical procedures and tools and train medical personnel without risk to human patients. As part of a project funded by the National Institutes of Health, we are developing a Virtual Transluminal Endoscopic Surgery Trainer (VTEST TM) for this purpose. In this work, objective performance measures derived from motion tracking sensors attached to an endoscope was tested for the transgastric NOTES appendectomy procedure performed with ex-vivo pig organs using the EASIE-R(TM) trainer box. Results from our study shows that both completion time and economy of motion parameters were able to differentiate between expert and novice NOTES surgeons with p value of 0.039 and 0.02 respectively. Jerk computed on sensor 2 data also showed significant results (p = 0.02). We plan to incorporate these objective performance measures in VTEST(TM).
authors: Center for Modeling, Simulation and Imaging in Medicine, Rensselaer Polytechnic Institute, Troy, NY, USA.
authors: Lauren I
authors: LI
authors: Chin
authors: Ganesh
authors: G
authors: Sankaranarayanan
authors: Saurabh
authors: S
authors: Dargar
authors: Kai
authors: K
authors: Matthes
authors: Suvranu
authors: S
authors: De
mesh_terms: D003194:Computer-Assisted Instruction / Q000295:instrumentation*; D004521:Educational Measurement / Q000379:methods*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D009038:Motion; D009048:Motor Skills / Q000502:physiology*; D057605:Natural Orifice Endoscopic Surgery / Q000295:instrumentation*; D011361:Professional Competence; D025321:Surgery, Computer-Assisted / Q000295:instrumentation*; D014159:Transducers; D014584:User-Computer Interface