Penetrating Atherosclerotic Ulcer of the Aorta: Imaging Features and Disease Concept
Authors:
- Yohjiro MatsuokaYMYohjiro Matsuoka
- Ichiro SakamotoISIchiro Sakamoto
- Eijun SueyoshiESEijun Sueyoshi
- Tomoaki OkimotoTOTomoaki Okimoto
- Kuniaki HayashiKHKuniaki Hayashi
- Naofumi MatsunagaNMNaofumi Matsunaga
- 1 July 2000
- journal article
- Published by Radiological Society of North America (RSNA) in RadioGraphics
- Vol. 20 (4) , 995-1005
Abstract
Penetrating atherosclerotic ulcer is an ulcerating atherosclerotic lesion that penetrates the elastic lamina and is associated with hematoma formation within the media of the aortic wall. This pathologic condition is distinct from classic aortic dissection and aortic rupture; however, care should be taken in making the diagnosis, particularly if the disease is discovered incidentally. At computed tomography (CT), penetrating atherosclerotic ulcer manifests as focal involvement with adjacent subintimal hematoma and is often associated with aortic wall thickening or enhancement. Magnetic resonance imaging is superior to conventional CT in differentiating acute intramural hematoma from atherosclerotic plaque and chronic intraluminal thrombus and allows unenhanced multiplanar imaging. Spiral CT involves shorter examination times and allows high-quality two- and three-dimensional image reconstruction. CT angiography can demonstrate complex spatial relationships, mural abnormalities, and extraluminal pathologic...Keywords
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