東京大学 · 医学
当研究室は、消化器内視鏡画像の画像認識技術に注力しており、特にコロナ内視鏡（CCE）や capsule endoscopy（CE）の画像を用いたAIを活用した病変同定・出血検出の研究を推進しています。高血圧や非ステロイド性抗炎症薬、抗凝固薬が大腸憩室性出血の独立したリスク要因であることを解明するなど、臨床的意義の高い疾患メカニズムの解明も並行して行っています。AI支援診断システムの開発を通じて、診断の正確性と効率性の両立を目指しています。
Figures are computed from collected data and may differ slightly.
Hypertension, nonsteroidal anti-inflammatory drugs, and anticoagulants, including aspirin, are independent risk factors for colonic diverticular hemorrhage.
Our CNN-based system for capsule endoscopy videos reduced the reading time of endoscopists without decreasing the detection rate of mucosal breaks. However, the reading level of endoscopists should be considered when using the system.
Abstract Background and Aim Detecting blood content in the gastrointestinal tract is one of the crucial applications of capsule endoscopy (CE). The suspected blood indicator (SBI) is a conventional tool used to automatically tag images depicting possible bleeding in the reading system. We aim to develop a deep learning‐based system to detect blood content in images and compare its performance with that of the SBI. Methods We trained a deep convolutional neural network (CNN) system, using 27 847
In a randomized controlled study, we found that colonoscopy within 24 hours after hospital admission did not increase SRH or reduce rebleeding compared with colonoscopy at 24-96 hours in patients with ALGIB. ClinicalTrials.gov, Numbers: UMIN000021129 and NCT03098173.
Earlier timing of CE achieved a higher diagnostic yield for patients with overt OGIB and consequently resulted in a higher intervention rate.
We developed and validated a new AI-based system that automatically detects colorectal neoplasms in CCE images.
Colonic diverticular bleeding is the most common cause of lower gastrointestinal bleeding. Colonoscopy can be used for both diagnosis and treatment of colonic diverticular bleeding. Identification of the stigmata of recent hemorrhage allows for various endoscopic hemostasis methods. Clipping, endoscopic band ligation, injection therapy, and thermal contact are available methods for endoscopic hemostasis. However, the optimal technique remains to be determined. Herein, we review the techniques an
A new short-type DBE allows faster insertion to the target site for pancreaticobiliary intervention in patients with surgically altered anatomy.
The cumulative incidence of rebleeding at 12 and 60 months was 11.0% and 35.3%, respectively. Five factors enable prediction of not only rebleeding but also transfusion requirements, length of stay, and death in OGIB patients.
The utility of single- and double-balloon endoscopy for colonoscopy seems comparable in patients with incomplete colonoscopy using a conventional colonoscope.
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