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Imaging of aortic dissection by helical computed tomography (CT)
Serge Willoteaux1, Christophe Lions, Virginia Gaxotte
1Department of Cardiovascular Radiology, Hôpital Cardiologique, CHRU de Lille, 59037, Lille, France. s-willoteaux@chru-lille.fr
European Radiology
|August 10, 2004
Summary
Aortic dissection, a fatal aortic emergency, is increasingly managed with endovascular techniques. Multi-slice CT scanning is crucial for diagnosis, guiding treatment by visualizing tears and branch involvement.
Area of Science:
- Cardiovascular Imaging
- Radiology
- Vascular Surgery
Background:
- Aortic dissection is a life-threatening emergency with high mortality.
- Endovascular treatments have evolved aortic dissection management.
- Accurate imaging is vital for treatment decisions.
Purpose of the Study:
- To review the role of multi-slice CT scanning in diagnosing aortic dissection.
- To detail CT imaging parameters and findings for acute and chronic dissections.
- To discuss diagnostic challenges and specific aortic pathologies.
Main Methods:
- Review of CT imaging parameters for aortic dissection.
- Illustration of CT appearances of acute and chronic aortic dissection.
- Discussion of diagnostic pitfalls and related aortic conditions.
Main Results:
- Multi-slice CT is the preferred modality for comprehensive aortic evaluation.
- CT effectively identifies entry tears and visceral branch involvement.
- Specific CT findings for intra-mural hematoma and penetrating aortic ulcers are presented.
Conclusions:
- Multi-slice CT is indispensable for diagnosing and managing aortic dissection.
- Understanding CT imaging nuances improves diagnostic accuracy.
- CT facilitates informed decisions regarding endovascular and surgical interventions.