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Dynamic MR imaging of outlet obstruction.
Nicolae Bolog1, Dominik Weishaupt
1Institute of Diagnostic Radiology, University Hospital Zurich, Switzerland. nicolae.bolog@usz.ch
Romanian Journal of Gastroenterology
|October 4, 2005
Summary
Outlet obstruction syndrome, a common cause of constipation, involves incomplete rectal evacuation. Dynamic pelvic MR imaging offers superior soft-tissue contrast and imaging plane flexibility compared to conventional defecography for diagnosis.
Area of Science:
- Radiology
- Gastroenterology
- Pelvic Floor Disorders
Background:
- Outlet obstruction syndrome affects up to 50% of constipated patients.
- Clinical examination is crucial, but imaging is vital for accurate diagnosis and treatment planning.
- Conventional defecography has limitations due to its projectional nature and poor soft-tissue visualization.
Purpose of the Study:
- To evaluate the role of dynamic pelvic MR imaging in diagnosing outlet obstruction syndrome.
- To compare the advantages of dynamic pelvic MR imaging over conventional defecography.
Main Methods:
- Dynamic pelvic MR imaging using open or closed configurations.
- Assessment of pelvic floor abnormalities such as rectocele, enterocele, internal rectal prolapse, and anismus.
Main Results:
- Dynamic pelvic MR imaging provides excellent soft-tissue contrast.
- The technique allows for free selection of imaging planes and good temporal resolution.
- It is a preferred modality for evaluating complex pelvic floor dysfunctions.
Conclusions:
- Dynamic pelvic MR imaging is a valuable tool for diagnosing outlet obstruction syndrome.
- Its advanced capabilities surpass conventional defecography in visualizing pelvic floor abnormalities.
- This technique aids in informed treatment decisions for patients with pelvic floor dysfunction.