Table 2 –

Comparison of different video review methods for an open colonoscopy procedure (chosen as an example), estimated time commitment required, and workflow.

	Full review of colon resection procedure	Procedural steps	Basic maneuvers	Basic maneuvers + procedural steps
Estimated amount of time	2 h	15-30 min	5-20 min	5-20 min
Work flow and benefits	Manual exploration of key findings based on human observation	Automated labeling of procedural steps. Allows more efficient manual exploration of specific procedure steps	Allows automated labeling of surgical actions, and this allows efficient review of errors and technical approaches	Maximum efficiency in review of errors and technical approaches per procedure step

The third column shows the video review of basic maneuvers, which is made possible through the algorithm described in this work. The fourth column shows a future vision where the algorithm could be incorporated into currently used procedure step detection algorithms.