RT Book, Section A1 Dietz, Hans Peter A2 Fleischer, Arthur C. A2 Toy, Eugene C. A2 Lee, Wesley A2 Manning, Frank A. A2 Romero, Roberto J. SR Print(0) ID 1106711039 T1 PELVIC FLOOR ULTRASOUND T2 Sonography in Obstetrics and Gynecology: Principles & Practice, 7e YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 9780071547727 LK obgyn.mhmedical.com/content.aspx?aid=1106711039 RD 2024/10/08 AB DefinitionsBallooning: 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.True 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.