经直肠腔内超声检测正常人肛管直肠声像图

Ultrasonography of anal canal and rectum of normal human beings by TRUS Ultrasound

目的 探讨正常人肛管直肠超声解剖。方法 应用实时高频经直肠内超声检查法探测166例正常人肛管直肠及相关肌肉组织,确定直肠及内、外括约肌的断面图并进行厚度测定。166树根据年龄分为3组:25～35岁组,36～55岁组,>55岁组。 结果 应用此检查法获得完整的肛管直肠及内、外括约肌、耻骨直肠肌超声解剖断面图,肛管直肠及内、外括约肌的显示率为100％,耻骨直肠肌的显示率为79％。3组的厚度分别为直肠48±3.78mm,52±4.60mm,54±4.40mm。内括约肌24±3.68mm,25±31.9mm,32±4.10mm,外括约肌52±3.20mm,55±4.02mm,58±5.08mm。结论 本研究对诊断肛肠病变提供正常人肛管直肠声像图及有关测值参数。

Purpose To discuss the anatomy of colon and rectum of normal human beings. Methods One hundred and sixty - six normal subjects were measured with colon,rectum and correlative muscles organ by realtime high - frequency TURS(Transrectal Ultrasonography). The transverse cross section of rectum and the inner and outer constrictor were confirmed and measured. One hundred and sixty - six normal human were divided by three groups: 25 - 35years old, 36- 55years old and > 55 years old. Results The intact transverse cross sections were got and were measured including rectum, anal canal, inner and outer constrictor and pubic rectum muscle. the display rate of rectum, anal canal and inner and outer constrictor was 100 % , the rate of pubic return were 79 % - The thinckness of these three groups were rectum 48 ± 3.78mm , 52 ± 4.60mm and 54±4.40mm,inner constrictor 24 ± 3.68,25 ± 3. 19mm and 32 ± 4. 10mm, outer constrictor 52 ± 3. 20mm,55 ± 4.02mm and 58 ± 5.08mm. Conclusion This study provides the ultrasonography of anal canal and rectum and concerned geodesic parameters for the diagnosis of colon and rectum disease.