RT Journal Article
SR Electronic
T1 Randomised controlled trial of WISENSE, a real-time quality improving system for monitoring blind spots during esophagogastroduodenoscopy
JF Gut
JO Gut
FD BMJ Publishing Group Ltd and British Society of Gastroenterology
SP 2161
OP 2169
DO 10.1136/gutjnl-2018-317366
VO 68
IS 12
A1 Lianlian Wu
A1 Jun Zhang
A1 Wei Zhou
A1 Ping An
A1 Lei Shen
A1 Jun Liu
A1 Xiaoda Jiang
A1 Xu Huang
A1 Ganggang Mu
A1 Xinyue Wan
A1 Xiaoguang Lv
A1 Juan Gao
A1 Ning Cui
A1 Shan Hu
A1 Yiyun Chen
A1 Xiao Hu
A1 Jiangjie Li
A1 Di Chen
A1 Dexin Gong
A1 Xinqi He
A1 Qianshan Ding
A1 Xiaoyun Zhu
A1 Suqin Li
A1 Xiao Wei
A1 Xia Li
A1 Xuemei Wang
A1 Jie Zhou
A1 Mengjiao Zhang
A1 Hong Gang Yu
YR 2019
UL http://gut.bmj.com/content/68/12/2161.abstract
AB Objective Esophagogastroduodenoscopy (EGD) is the pivotal procedure in the diagnosis of upper gastrointestinal lesions. However, there are significant variations in EGD performance among endoscopists, impairing the discovery rate of gastric cancers and precursor lesions. The aim of this study was to construct a real-time quality improving system, WISENSE, to monitor blind spots, time the procedure and automatically generate photodocumentation during EGD and thus raise the quality of everyday endoscopy.Design WISENSE system was developed using the methods of deep convolutional neural networks and deep reinforcement learning. Patients referred because of health examination, symptoms, surveillance were recruited from Renmin hospital of Wuhan University. Enrolled patients were randomly assigned to groups that underwent EGD with or without the assistance of WISENSE. The primary end point was to ascertain if there was a difference in the rate of blind spots between WISENSE-assisted group and the control group.Results WISENSE monitored blind spots with an accuracy of 90.40% in real EGD videos. A total of 324 patients were recruited and randomised. 153 and 150 patients were analysed in the WISENSE and control group, respectively. Blind spot rate was lower in WISENSE group compared with the control (5.86% vs 22.46%, p<0.001), and the mean difference was −15.39% (95% CI −19.23 to −11.54). There was no significant adverse event.Conclusions WISENSE significantly reduced blind spot rate of EGD procedure and could be used to improve the quality of everyday endoscopy.Trial registration number ChiCTR1800014809; Results.