The minimally acceptable classification criterion for surgical skill: intent vectors and separability of raw motion data

International Journal of Computer Assisted Radiology and Surgery
Rodney L DockterTimothy M Kowalewski

Abstract

Minimally invasive surgery requires objective methods for skill evaluation and training. This work presents the minimally acceptable classification (MAC) criterion for computational surgery: Given an obvious novice and an obvious expert, a surgical skill evaluation classifier must yield 100% accuracy. We propose that a rigorous motion analysis algorithm must meet this minimal benchmark in order to justify its cost and use. We use this benchmark to investigate two concepts: First, how separable is raw, multidimensional dry laboratory laparoscopic motion data between obvious novices and obvious experts? We utilized information theoretic techniques to analytically address this. Second, we examined the use of intent vectors to classify surgical skill using three FLS tasks. We found that raw motion data alone are not sufficient to classify skill level; however, the intent vector approach is successful in classifying surgical skill level for certain tasks according to the MAC criterion. For a pattern cutting task, this approach yields 100% accuracy in leave-one-user-out cross-validation. Compared to prior art, the intent vector approach provides a generalized method to assess laparoscopic surgical skill using basic motion segments an...Continue Reading

References

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Oct 11, 2013·The New England Journal of Medicine·John D BirkmeyerUNKNOWN Michigan Bariatric Surgery Collaborative
Feb 8, 2014·Medical Image Computing and Computer-assisted Intervention : MICCAI·Narges AhmidiGregory D Hager
Feb 22, 2014·The Journal of Surgical Research·Carolyn ChenThomas Lendvay
Aug 12, 2014·The Journal of Surgical Research·Timothy M KowalewskiMika N Sinanan
Apr 22, 2015·International Journal of Computer Assisted Radiology and Surgery·Narges AhmidiMasaru Ishii
Jul 24, 2015·Surgical Endoscopy·Ernest D GomezKatherine J Kuchenbecker
Nov 4, 2015·The Journal of Urology·Timothy M KowalewskiElspeth McDougall

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Citations

Aug 30, 2020·International Journal of Computer Assisted Radiology and Surgery·Jason D KellyTimothy M Kowalewski
Sep 27, 2018·International Journal of Computer Assisted Radiology and Surgery·Ziheng Wang, Ann Majewicz Fey
Apr 17, 2020·International Journal of Computer Assisted Radiology and Surgery·Jason D KellyTimothy M Kowalewski
Oct 2, 2020·International Journal of Computer Assisted Radiology and Surgery·Jason D KellyTimothy M Kowalewski
Feb 15, 2021·Artificial Intelligence in Medicine·Pablo Castillo-SeguraCarlos Delgado Kloos

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