Defecation angiography

Defecation angiography is an emerging test method, which is mainly used for clinical symptoms of difficulty in defecation, chronic constipation, mucus and bloody stool, anal swell, perineal and lumbosacral pain during defecation. This type of patients is difficult to find problems through clinical digital anal examination, conventional barium enema and endoscopy, because abnormalities in defecation can not be detected when the rectum is empty, and the abnormality can only be displayed when the bowel is full after defecation.

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