defecography การใช้

Specifically, defecography can differentiate between anterior and posterior rectocele.
This phenomenon was first described in the late 1960s when defecography was first developed and became widespread.
Other techniques include manometry, balloon expulsion test, evacuation proctography ( see defecating proctogram ), and MRI defecography.
Defecography, sigmoidoscopy, transrectal ultrasound, mucosal biopsy, anorectal manometry and electromyography have all been used to diagnose and study SRUS.
Shortly after the invention of defecography, In 1968 Broden and Snellman used John Hunter and Albrecht von Haller that this condition is essentially a full-thickness rectal intussusception, beginning about 3 inches above the dentate line and protruding externally.