Fig. 1From: Perianal ultrasound (PAUS): visualization of sphincter muscles and comparison with digital-rectal examination (DRE) in femalesPosition of the ultrasound probe for PAUS examination in women in dorsal recumbent position. The probe (3.5–5 MHz) is placed on the anal area and tilt 10°–20° in ventral direction. B = Bladder, U = Uterus, V = Vagina, R = Rectum, C = CoccyxBack to article page