Abstract：Objective To discuss the effectiveness of application of transperineal ultrasound imaging in
displaying of the anatomy of the female pelvic floor. Methods A total of 129 primiparas were enrolled
in the study, including 44 cases with vaginal delivery (Group A), 43 cases with unsuccessful vaginal
delivery to cesarean (Group B), and 42 cases with elective cesarean delivery (Group C). The anatomy
of the female pelvic floor was observed under the resting state and the maximum valsalva maneuver
by using real-time three-dimensional ultrasound probe and transperineal scanning for primiparas in all
three groups. The vertical distance between the bladder neck and pubic bone was measured, and then
the degree of bladder neck descent (BND) in two-dimensional ultrasound images was calculated so as
to measure the area, perimeter, transversal diameters and anteroposterior diameters of the levator hiatus
(LH) in three-dimensional images. Results BND: Group A > Group B > Group C (P<0.05); the area,
perimeter, transversal diameters and anteroposterior diameters of LH under the resting state: Group A >
Group B > Group C (P<0.05); parameters of LH under the maximum valsalva maneuver in three groups
were greater than those under the resting state (P<0.01). Conclusion The transperineal ultrasound
imaging could show the anatomy of the postpartum female pelvic floor clearly, which might serve as a
top option for diagnosis of female pelvic floor dysfunction.
