RT Book, Section A1 Dietz, Hans Peter A2 Fleischer, Arthur C. A2 Abramowicz, Jacques S. A2 Gonçalves, Luis F. A2 Manning, Frank A. A2 Monteagudo, Ana A2 Timor, Ilan E. A2 Toy, Eugene C. SR Print(0) ID 1151029541 T1 Pelvic Floor Ultrasound T2 Fleischer's Sonography in Obstetrics and Gynecology: Textbook and Teaching Cases, 8e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9781259641367 LK obgyn.mhmedical.com/content.aspx?aid=1151029541 RD 2024/04/23 AB Key TermsBallooning: enlargement of the levator hiatus to 25 cm2 or more on Valsalva.Bladder neck descent: the extent of caudal movement of the bladder neck on maximal Valsalva, relative to the symphysis pubis.Detrusor wall thickness: thickness of the bladder wall, measured at less than 50 mL bladder volume at the dome, from leading edge (mucosa) to leading edge (peritoneum).Funneling: opening of the bladder neck on Valsalva.Levator avulsion: detachment of the puborectalis muscle from its insertion on the pelvic sidewall (inferior pubic ramus).Levator hiatus: the plane of minimal hiatal dimensions between symphysis pubis and inferior pubic rami anteriorly and the puborectalis loop laterally and posteriorly.Rectocele: diverticulum of the anterior rectal wall, which is defined by a 90-degree discontinuity of the anterior rectal wall at the junction of the anal canal and rectal ampulla, resulting in a herniation of rectal contents into the vagina on Valsalva.