The Use of Perineal Ultrasound to Quantify Levator Activity and Teach Pelvic Floor Muscle Exercises
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Perineal ultrasound was used to detect and quantify levator activity by measuring the displacement of the internal urethral meatus against the inferoposterior margin of the symphysis pubis. Women who had previously been instructed in pelvic floor muscle exercises were more likely to contract the levator muscle when asked to do so than were those without previous instruction (P<0.0001). Of the 56 women who were unable to contract the pelvic floor on request, 32 (57%) eventually succeeded with visual ultrasound biofeedback. Pelvic floor muscle assessment and teaching can be used as an adjunct to the ultrasound assessment of urogynecologic patients, requiring at most 5 minutes. It allows quantification of lavator activity and can provide visual biofeedback, which is easily understood and readily accepted by women.
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