Angiography in lesions of the small bowel
1Department of Diagnostic Radiology, University Hospital, Lund, Sweden.
Insights
Angiography is now mainly used for diagnosing and treating gastrointestinal bleeding and ischemia. Key signs include contrast extravasation for bleeding and vascular blockages for ischemia.
Area of Science:
- Radiology
- Gastroenterology
- Vascular Imaging
Background:
- Endoscopy and advanced imaging (ultrasonography, CT, MRI) have reduced angiography indications.
- Angiography remains crucial for specific gastrointestinal conditions.
Purpose of the Study:
- To outline the current role of angiography in diagnosing gastrointestinal hemorrhage and ischemia.
- To describe key radiologic signs indicative of these conditions.
Main Methods:
- Review of radiologic findings in gastrointestinal hemorrhage and ischemia.
- Focus on diagnostic criteria for angiography.
Main Results:
- Radiologic signs of hemorrhage include contrast extravasation, irregular vessels, and aneurysms.
- Radiologic signs of ischemia primarily involve vascular stenoses and occlusions.
Conclusions:
- Angiography is primarily indicated for unexplained gastrointestinal hemorrhage and ischemia.
- Specific radiologic signs aid in the diagnosis of these vascular conditions.
Abstract:
Following the introduction of endoscopy and newer imaging techniques, such as ultrasonography, computer tomography and magnetic resonance imaging, the indications for angiography have been reduced mainly to the diagnosis and treatment of unexplained gastrointestinal hemorrhage and ischemia. Radiologic signs of hemorrhage include extravasations of contrast medium, irregular vessels and aneurysms. Vascular stenoses and occlusions are the main radiologic signs of ischemia.
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