Ultrasound image demonstrating narrowing of the pelvic outlet with pelvic floor muscle contraction
Ultrasound image demonstrating narrowing of the pelvic outlet with pelvic floor muscle contraction
Two-dimensional perineal pelvic floor ultrasound image of midsagittal view showing narrowing of the antero-posterior dimension of the pelvic outlet with pelvic floor muscle contraction as measured from the pubic bone to the levator plate.
Reproduced with permission from Seyed Abbas Shobeiri, MD, FACS, FACOG.