Cleveland Clinic Department of Colorectal Surgery, Cleveland, OH 44195, USA.
Int J Colorectal Dis. 2010 Jan;25(1):87-90. doi: 10.1007/s00384-009-0816-x. Epub 2009 Oct 21.
Endorectal ultrasound (ERUS) has become an integral part of the assessment of rectal tumors. It provides information about the depth of invasion and lymph node status which in turn is used in devising a management plan. It is important therefore that accurate interpretation of these studies is achieved. The aim of this study was to assess how accurately we interpret ERUS.
A collection of 26 ERUS images were compiled and confirmed by two experienced colorectal sonographers. The survey was sent to 100 ASCRS members practicing at institutions with residency programs in colorectal surgery in USA and Canada. Two separate mailings were sent. Participants were asked to allocate a T and N stage to each of the images. Their responses were compared with pathology results.
Twenty five surveys were returned, 23 were completed. Thirteen respondents reported performing ERUS themselves, on average performing three examinations per month (range, 1-8). The mean duration of practice was 11.2 years (range, 0-26). The mean number of rectal cancer cases managed over a 12-month period was 25 (range, 10-75). T stage was accurately reported in 38-69%.
If we continue to rely on ERUS as an important step in staging rectal cancer further education may be needed to improve overall interpretation.
直肠腔内超声（ERUS）已成为直肠肿瘤评估的重要组成部分。它提供了关于浸润深度和淋巴结状态的信息，这些信息反过来又用于制定管理计划。因此，准确解读这些研究结果非常重要。本研究旨在评估我们对 ERUS 的解读准确性。
收集了 26 张 ERUS 图像，并由两位经验丰富的结直肠超声医师确认。该调查发送给了在美国和加拿大设有结直肠外科住院医师培训项目的 100 名 ASCRS 成员。我们进行了两次邮寄。参与者被要求为每张图像分配 T 分期和 N 分期。将他们的回答与病理结果进行比较。
共收回 25 份调查，其中 23 份完整。13 名受访者报告自己进行 ERUS 检查，平均每月进行 3 次检查（范围为 1-8 次）。从业时间平均为 11.2 年（范围为 0-26 年）。在过去 12 个月内，每位受访者管理的直肠肿瘤病例数平均为 25 例（范围为 10-75 例）。T 分期的准确报告率为 38%-69%。
如果我们继续将 ERUS 作为直肠癌症分期的重要步骤，那么可能需要进一步教育以提高整体解读水平。
