Can 3D power Doppler identify levator ani vascularization at its pubic insertion?

Area of Science:

• Pelvic floor anatomy and physiology
• Medical imaging techniques
• Gynecological health

Background:

• The levator ani muscle is crucial for pelvic floor support.
• Understanding normal vascularization of pelvic floor muscles is important for diagnosing conditions.

Purpose of the Study:

• To identify normal vascularization of the puborectalis/pubovisceralis muscle insertion using 3D power Doppler ultrasound.
• To evaluate vascularization indices in nulliparous, premenopausal women.

Main Methods:

• Translabial ultrasound with 3D power Doppler was performed on 40 nulliparous, premenopausal women.
• Vascularization index (VI), flow index (FI), and vascularization-flow index (VFI) were calculated bilaterally at the pubic insertion.
• Interobserver agreement and correlation analyses were conducted.

Main Results:

• A high correlation was observed between the three ultrasound indices on each side (p < 0.005).
• No correlation was found between vascularization indices and body mass index (BMI) or age.
• The correlation between the same index on contralateral sides was not statistically significant.

Conclusions:

• 3D Doppler ultrasound can identify puborectalis/pubovisceralis muscle vascularization at its insertion.
• Significant differences in vascularization values exist between the left and right sides of the muscle.