排粪造影的正常表现

我们对110例无肛直肠临床症状者作了排粪造影检查。男性57例,女性53例,平均年龄43.15岁。其中82例表现正常,28例表现异常。排便时正常表现:(1)肛管直肠角(ARA)增大。轴线法测量ARA平均增大21.27°,近似轴线法测量平均增大36.72°。(2)耻骨直肠肌压迹变浅或消失。(3)肛管长度缩短及肛管开放。肛管长度(AL)平均缩短1.20cm,肛管宽度(AW)平均为2.23cm。(4)盆底抵抗力良好。排便时会阴下降(DP)<3.0cm。在女性直肠阴道隔无变形。(5)末段直肠内钡剂大部或全部排空。

Normal features of human defecography

Defecography was performed in 110 patients without any anorectal symptoms which included 57 male and 53 female with an average age of 43. 15. Normal defecography was found in 82 cases and abnormal one in 28. The normal features of defecography in 82 patients were as follows;1.There was an increase of anorectal angle during defecation. The increase was 21. 27 degrees measured-with precise axis method and 36. 72 degrees with approximate axis method.2. Reduction or obliteration of the impression of the puborectal muscle.3. There was a shortening of the anal canal by 1. 20 cm and a widening of the caliber of the anal canal to an average of 2. 23 cm.4. The resistance of the pelvic floor was good and the decending of the perineum was smaller than 3 cm during straining. The rectovaginal septum of female subjects was not deformed during straining.5. The barium paste in the distal rectum was largely or totally evacuated with an average e-vacuation rate of 90. 55%.