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[Normal female urethra and paraurethral structure--evaluation with MR imaging]
K Sugimura1, K Yoshikawa, H Okizuka
1Department of Radiology, Shimane Medical University.
Nihon Igaku Hoshasen Gakkai Zasshi. Nippon Acta Radiologica
|August 25, 1991
Summary
Magnetic resonance (MR) imaging clearly shows the normal female urethra and pubourethral ligament anatomy. This technique is excellent for visualizing urethral structures, though less clear in older individuals.
Area of Science:
- Radiology
- Anatomy
Context:
- The female urethra's detailed anatomy is crucial for understanding pelvic floor function and potential pathologies.
- Previous imaging techniques had limitations in fully depicting urethral structures.
Purpose:
- To evaluate the utility of 1.5 Tesla magnetic resonance (MR) imaging in visualizing the normal female urethra and associated structures.
- To describe the MR imaging characteristics of the female urethra.
Summary:
- Forty female patients underwent MR imaging using a 1.5 Tesla unit to assess urethral anatomy.
- MR imaging successfully depicted the outer muscle layer, submucosa (high-signal ring), and inner low-signal ring of the urethra.
- A central high-signal spot in the mid-urethra was observed in 38% of cases, potentially representing urine and mucus.
- Zonal anatomy clarity decreased in women over 60 years of age.
Impact:
- MR imaging is confirmed as an excellent tool for demonstrating female urethral anatomy.
- Provides a detailed, non-invasive method for studying urethral morphology.
- Findings contribute to a better understanding of female pelvic anatomy for clinical and research purposes.