Law P J, Kamm M A, Bartram C I
Department of Radiology, St. Mark's Hospital, London, United Kingdom.
Dis Colon Rectum. 1990 May;33(5):370-3. doi: 10.1007/BF02156260.
Mapping of the external anal sphincter by anal endosonography was compared with the electromyographic findings in 15 patients with fecal incontinence after perineal trauma. Both examinations showed no defect in three patients. In the 12 patients with muscle defects, there was agreement on the quadrant involved in all patients. In seven patients, there was total agreement in the hours of the defect, in four there was a one hour discrepancy, and in one there was a two-hour difference in the measured defect. Correlation between the two techniques was high (r = 0.96; P less than 0.01). Anal endosonography is better tolerated by patients than electromyographic mapping and is a useful technique for assessing posttraumatic defects of the external anal sphincter.
对15例会阴创伤后大便失禁患者，通过肛门内超声对肛门外括约肌进行成像，并与肌电图检查结果进行比较。两种检查均显示3例患者无缺损。在12例有肌肉缺损的患者中，所有患者在受累象限方面达成一致。在7例患者中，缺损部位的时间完全一致，4例有1小时的差异，1例测量的缺损部位有2小时的差异。两种技术之间的相关性很高（r = 0.96；P < 0.01）。与肌电图成像相比，患者对肛门内超声的耐受性更好，它是评估肛门外括约肌创伤后缺损的一种有用技术。
