Womack N R, Williams N S, Holmfield J H, Morrison J F, Simpkins K C
Br J Surg. 1985 Dec;72(12):994-8. doi: 10.1002/bjs.1800721221.
A new dynamic technique for the investigation of anorectal function has been developed. This involves radiological visualization of the rectum during voiding of a semisolid radio-opaque contrast medium, and simultaneous measurement of the intrarectal pressure and electrical activity of the external anal sphincter. The method has been used to study patients (n = 16) with profound difficulty passing formed stool. It has demonstrated an abnormal increase in the activity of the puborectalis and superficial and sphincter muscles during voiding in these patients, compared with normal subjects (n = 6). The inability to void was associated with failure to widen the anorectal angle on straining.
一种用于研究肛门直肠功能的新动态技术已经开发出来。这包括在半固体不透X线造影剂排出过程中对直肠进行放射学可视化，同时测量直肠内压力和肛门外括约肌的电活动。该方法已用于研究16例排出成形粪便有严重困难的患者。与6例正常受试者相比，已证明这些患者在排尿时耻骨直肠肌、浅表肌和括约肌的活动异常增加。无法排尿与用力时肛门直肠角未能增宽有关。
