Rieger N A, Downey P R, Wattchow D A
Department of Surgery, Flinders Medical Centre, South Australia.
Br J Radiol. 1996 Jul;69(823):665-7. doi: 10.1259/0007-1285-69-823-665.
Endoanal ultrasound was used in the investigation of 26 patients with faecal incontinence. In each case images of the anal sphincter were taken at rest and during contraction or squeezing (dynamic). Better definition of the normal anal sphincter or anal sphincter defects was obtained in 16 (62%) of the patients with imaging during contraction. In eight of the 13 patients with a sphincter defect there was better definition of the defect and increased separation of the ends of the sphincter during contraction. Imaging during contraction improves diagnostic accuracy and is a useful adjunct with endoanal ultrasound.
肛管超声用于对26例大便失禁患者进行检查。对每例患者均在静息状态以及收缩或挤压（动态）时采集肛门括约肌图像。16例（62%）患者在收缩期成像时，肛门括约肌正常或肛门括约肌缺陷的清晰度更佳。13例括约肌缺陷患者中有8例在收缩期缺陷清晰度更佳，且括约肌两端分离度增加。收缩期成像提高了诊断准确性，是肛管超声的一项有用辅助手段。
