Related Experiment Video
Updated: Jul 19, 2025
The Role of Indocyanine Green Fluorescence in Complex Laparoscopic Cholecystectomy Navigation
Published on: January 31, 2025
Development of an artificial intelligence system for real-time intraoperative assessment of the Critical View of
Masahiro Kawamura1, Yuichi Endo2, Atsuro Fujinaga2
1Department of Gastroenterological and Pediatric Surgery, Faculty of Medicine, Oita University, Oita, Japan. kawamura@oita-u.ac.jp.
Background:
The Critical View of Safety (CVS) was proposed in 1995 to prevent bile duct injury during laparoscopic cholecystectomy (LC). The achievement of CVS was evaluated subjectively. This study aimed to develop an artificial intelligence (AI) system to evaluate CVS scores in LC.
Materials And Methods:
AI software was developed to evaluate the achievement of CVS using an algorithm for image classification based on a deep convolutional neural network. Short clips of hepatocystic triangle dissection were converted from 72 LC videos, and 23,793 images were labeled for training data. The learning models were examined using metrics commonly used in machine learning.
Results:
The mean values of precision, recall, F-measure, specificity, and overall accuracy for all the criteria of the best model were 0.971, 0.737, 0.832, 0.966, and 0.834, respectively. It took approximately 6 fps to obtain scores for a single image.
Conclusions:
Using the AI system, we successfully evaluated the achievement of the CVS criteria using still images and videos of hepatocystic triangle dissection in LC. This encourages surgeons to be aware of CVS and is expected to improve surgical safety.
