Modified MR defecography without rectal filling in obstructed defecation syndrome: Initial experience.

Objective: To evaluate the role of dynamic MR defecography before rectal filling in detecting occult anterior compartment prolapse in patients with obstructed defecation.

Methods: This prospective study was approved by the ethics committee. Seventy six females with obstructed defecation underwent dynamic MR defecography before and after rectal filling.