Center for Diagnostic and Therapeutic Endoscopy, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan.
Clin Res Hepatol Gastroenterol. 2012 Feb;36(1):66-71. doi: 10.1016/j.clinre.2011.09.009. Epub 2011 Nov 9.
Capsule endoscopy (CE) is a comfortable for the patients; however, CE review is time-consuming. The aim of this study was (1) to evaluate the effectiveness of the CE software in reducing the CE reading time and the number of false negatives by beginners, and (2) to determine the learning curve for reading CE images.
Capsule endoscopic images were captured by Pillcam SB (Given Imaging Ltd, Tokyo, Japan), and analyzed using the proprietary RAPID 5 software. Comparison of CE reading using different software modes: manual mode, automatic mode, and QuickView (QV) mode. Three trainee endoscopists participated as CE readers. Each participant watched CE videos in which positive findings had been predefined by trained endoscopists. Each participant read the same CE record by using one of three different software modes. These were blinded on clinical history of patients. CE reading time was recorded, and the number of false negatives was counted. Each trainee endoscopist read a total of 45 CE videos, in five steps divided into nine videos per step.
There was no significant reader associated difference between the results for the different modes. The QV software did miss some positive findings. Therefore, the total number of instances of FN by the software plus the reader in the QV mode was significantly higher than the others. The reading times in the automatic mode and the QV mode were significantly shorter than that in the manual mode. After the second step, the number of instances of false negatives significantly decreased.
CE software is useful for reducing the reading time. Experience of approximately 20 CE readings can be considered as the first step to becoming an expert.
胶囊内镜（CE）检查对患者而言较为舒适；然而，CE 阅片较为耗时。本研究旨在：（1）评估 CE 阅片软件对减少初学者阅片时间和假阴性率的有效性；（2）确定 CE 图像阅片的学习曲线。
采用 Pillcam SB（Given Imaging Ltd，东京，日本）采集胶囊内镜图像，并使用专有的 RAPID 5 软件进行分析。比较不同软件模式（手动模式、自动模式和 QuickView [QV] 模式）下的 CE 阅片。三名受训内镜医师作为 CE 阅片者参与研究。每位参与者观看由训练有素的内镜医师预先确定阳性发现的 CE 视频。每位参与者使用三种不同软件模式中的一种阅读相同的 CE 记录。阅片时，临床病史对参与者是盲态的。记录 CE 阅片时间，并计算假阴性率。每位受训内镜医师总共阅读 45 个 CE 视频，分五个步骤，每个步骤 9 个视频。
不同模式下的结果在读者间无显著差异。QV 软件确实遗漏了一些阳性发现。因此，QV 模式下软件加读者的假阴性总数明显高于其他模式。自动模式和 QV 模式的阅片时间明显短于手动模式。经过第二步，假阴性的数量明显减少。
CE 软件有助于缩短阅片时间。大约 20 次 CE 阅读经验可被视为成为专家的第一步。
