Journal
JOURNAL OF GASTROINTESTINAL SURGERY
Volume 26, Issue 5, Pages 1006-1014Publisher
SPRINGER
DOI: 10.1007/s11605-021-05161-4
Keywords
Laparoscopic gastrectomy; Gastric cancer; Device usage; Artificial intelligence; Deep learning
Categories
Funding
- JSPS KAKENHI Grant [JP19K18151]
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This study compared the patterns of surgical device usage during laparoscopic gastrectomy for gastric cancer among surgeons at different skill levels using an automated surgical-instrument detection system. The results showed that there were differences in device usage patterns depending on the surgeons' skill levels, suggesting potential differences in how qualified and nonqualified surgeons perform the procedures.
Background Whether surgical device usage in laparoscopic gastrectomy differs with respect to operator's skill levels is unknown. Further, device usage analysis using artificial intelligence has not been reported to date. Herein, we compared the patterns of surgical device usage during laparoscopic gastrectomy for gastric cancer among surgeons at different skill levels. The data of device usage was acquired from laparoscopic video recordings using an automated surgical-instrument detection system. Methods In total, 100 video recordings of infrapyloric lymphadenectomy and 33 of D2 suprapancreatic lymphadenectomy during laparoscopic gastrectomy for gastric cancer were analyzed in this retrospective study. The system's accuracy was evaluated by comparing the automatic and the manual usage time. Surgical device usage patterns were compared between qualified and nonqualified surgeons of The Japan Society for Endoscopic Surgery Endoscopic Surgical Skill Qualification System. Results For every device, the automatic detection time and manual detection time were consistent with each other. In infrapyloric lymphadenectomy, the usage time proportions of dissector forceps and clip applier were higher among nonqualified operators than among qualified operators (dissector, 5.1% vs. 2.3%, P < 0.001; clip applier, 1.6% vs. 1.3%, P < 0.01). In suprapancreatic lymphadenectomy, the usage time proportions of energy devices, clip applier, and grasper forceps were significantly different (energy devices, 59.6% vs. 50.6%, P < 0.001; clip applier, 1.4% vs. 0.9%, P < 0.001; only grasper forceps; 18.3% vs. 27.9%, P = 0.022). Conclusions Quantitative analysis of laparoscopic device usage using the automated surgical device detection system showed that the patterns of device usage during laparoscopic gastrectomy differed depending on surgeons' skill levels. These differences could suggest how the qualified and nonqualified surgeons performed the procedures.
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