Flexible sigmoidoscopy Similar to a senior’s standard annual colonoscopy, this test uses a long, slender, flexible tube with a video camera attached to explore the rectum and lower colon for abnormalities.A thin needle electrode measures electrical activity from the muscles, allowing the doctor to assess nerve damage Anal sphincter electromyography (EMG) This tests the pelvic floor muscles and the muscles around the anus, as well as the nerves that control those muscles.The patient will cleanse their bowels with enemas before the procedure, then simulate defecation on a toilet in an X-ray machine using a soft paste inserted by the radiologist Proctography or defecography This test uses X-rays to view the shape and position of the rectum during defecation, and can identify rectal prolapse or rectocele.In this case, the ultrasound focuses on the anus and rectum Anorectal ultrasound An ultrasound uses a wand-like instrument, called a transducer, to bounce soundwaves off organs to create an image of their structures. ![]() It also tests the tightness of the anal sphincter muscles ![]()
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