Division of Gastroenterology, Mayo Clinic, Scottsdale, Arizona 85259, USA.
Endoscopy. 2011 Feb;43(2):123-7. doi: 10.1055/s-0030-1255916. Epub 2010 Oct 29.
The PillCam COLON capsule (Given Imaging, Ltd., Yoqneam, Israel) is an emerging technology for colon visualization. The aim of this prospective study was to assess the interobserver agreement of a new grading scale to evaluate colon cleansing for capsule use.
Healthy volunteers underwent colon preparation and ingested a PillCam COLON capsule. A RAPID 5 (Given Imaging, Ltd.) video was generated and de-identified, and the colon was divided into five segments. Two cleanliness grading scales were compared: a 2-point scale (adequate and inadequate) and a 4-point grading scale (poor, fair, good, and excellent). For assessment of interobserver variability, two experienced gastroenterologists independently rated the cleansing level for each colon segment and for the entire video. Investigators participated in a calibration session prior to reading the study videos.
A total of 40 individuals (aged 40 - 74 years) completed the study. A total of 196 colon video segments were evaluated. Per segment, κ values for the 2-point and 4-point scales were 0.754 and 0.619, respectively, representing good interobserver agreement. For the overall grade of the 40 videos, κ values for the 2-point and 4-point scales were 0.647 and 0.44, respectively.
This new cleanliness grading scale showed good interobserver agreement and may be used with the PillCam COLON capsule to assess preparation quality.
PillCam COLON 胶囊（Given Imaging，Ltd.，以色列 Yoqneam）是一种新兴的结肠可视化技术。本前瞻性研究的目的是评估一种新的评分系统评估胶囊使用时结肠清洁度的观察者间一致性。
健康志愿者进行结肠准备并摄入 PillCam COLON 胶囊。生成并去标识 RAPID 5（Given Imaging，Ltd.）视频，并将结肠分为五个节段。比较了两种清洁度评分系统：2 分制（充分和不充分）和 4 分制（差、一般、好和优秀）。为评估观察者间的变异性，两名经验丰富的胃肠病学家独立评估每个结肠节段和整个视频的清洁度级别。研究人员在阅读研究视频之前参加了校准会议。
共有 40 名（年龄 40-74 岁）完成了研究。总共评估了 196 个结肠视频节段。每个节段，2 分制和 4 分制的κ 值分别为 0.754 和 0.619，代表良好的观察者间一致性。对于 40 个视频的整体等级，2 分制和 4 分制的κ 值分别为 0.647 和 0.44。
这种新的清洁度评分系统显示出良好的观察者间一致性，可与 PillCam COLON 胶囊一起用于评估准备质量。
