Quantitative clinical evaluation method for small intestine capsule endoscope
10.19745/j.1003-8868.2023202
- VernacularTitle:小肠胶囊内镜拍摄性能的定量临床评价方法探索
- Author:
Jian-Fang WU
1
;
Wen JIA
;
Ting MA
;
You-Xin LIU
Author Information
1. 西南石油大学电气信息学院,成都 610500
- Keywords:
capsule endoscope;
video recording performance;
photography performance;
video performance;
quantitative evaluation
- From:
Chinese Medical Equipment Journal
2023;44(10):28-32
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the quantitative clinical evaluation method for the photography performance of the small intestine capsule endoscope.Methods Two mainstream small intestine capsule endoscopes in the world were placed into a pure black and light-free environment to simulate the movement of the capsule endoscopes in the digestive tract,and the images were captured to analyze the changes in the transmission frame rate and lighting flicker time of the capsule endoscopes,then a quantitative clinical evaluation method for the photography performance of the small intestine capsule endoscope was proposed based on the study results.Results The China-made capsule endoscope showed a decrease in transmission frame rate after 4 min of operation,and each frame corresponded to a lighting flicker of variable duration;the capsule endoscope from other countries had not any obvious decrease in transmission frame rate,and each frame corresponded to a lighting flicker of fixed duration and another one of variable duration.In case of large differences in optical reflection characteristics,the China-made endoscope required 2-12 frames to adjust exposure,while the other endoscope was able to adjust exposure immediately.Based on the results above a method was proposed for quantitatively evaluating the images obtained from the capsule endoscopes at static and dynamic states in terms of photography performance and video performance.Conclusion Quantitatively evaluating the performance of capsule endoscopes in gastrointestinal scenarios with highly variable optical reflectance characteristics contributes to reflecting their clinical value,and a new idea is provided for performance comparison and clinical evaluation of capsule endoscopes.[Chinese Medical Equipment Journal,2023,44(10):28-32]
