Related Experiment Videos
Upright dynamic MR defaecating proctography in an open configuration MR system.
G M Lamb1, M G de Jode, S W Gould
1Interventional Magnetic Resonance Unit, Imperial College School of Medicine, St Mary's Hospital, London, UK.
The British Journal of Radiology
|July 8, 2000
Summary
This study evaluates a new magnetic resonance (MR) proctography technique for assessing rectal evacuation. The MR method shows promise as an alternative to traditional fluoroscopic proctography for diagnosing anatomical and functional abnormalities.
Area of Science:
- Medical Imaging
- Gastroenterology
- Radiology
Background:
- Conventional fluoroscopic proctography is a standard imaging technique for evaluating defecation disorders.
- Limitations of fluoroscopic proctography include radiation exposure and challenges in dynamic imaging.
Purpose of the Study:
- To evaluate the efficacy and feasibility of a magnetic resonance (MR) proctography technique.
- To assess anatomical and functional abnormalities of the rectum during defecation.
Main Methods:
- Utilized an open 0.5 T MR system for dynamic imaging.
- Employed a fast gradient echo sequence to visualize rectal evacuation.
- Administered a gadolinium-containing rectal contrast agent.
- Performed imaging in the upright position.
Main Results:
- Successfully imaged rectal evacuation in 40 patients.
- Documented both anatomical and functional abnormalities.
- Demonstrated the potential of MR proctography in a clinical setting.
Conclusions:
- MR proctography is a viable alternative to conventional fluoroscopic proctography.
- This technique offers a non-ionizing radiation imaging option for defecation disorders.