Aortic dissection | Radiology Reference Article - Radiopaedia.org
2024年7月26日 · Thoracic aortic dissection can extend distally into the abdominal aorta and iliac arteries. Simultaneous CT imaging of the abdomen and pelvis is therefore often performed to identify concomitant mesenteric or abdominal visceral malperfusion. Non-contrast CT may only demonstrate subtle findings. However, a high-density mural hematoma is often ...
Penetrating atherosclerotic ulcer - Radiopaedia.org
2024年7月5日 · Penetrating atherosclerotic ulcers can resolve completely or stay stable, or they can also progress to aortic dissection, aortic saccular aneurysms, perforation and spontaneous aortic rupture. There are conflicting reports about the most common course of penetrating atherosclerotic ulcers 1.
Aortic intramural hematoma | Radiology Reference Article
2024年6月12日 · Aortic intramural hematoma (IMH) is an atypical form of aortic dissection due to a contained hemorrhage into the aortic wall usually from the vasa vasorum without an intimal tear. It forms part of the acute aortic syndrome spectrum along with penetrating atherosclerotic ulcer and classical aortic dissection.
Internal carotid artery dissection | Radiology Reference Article ...
2023年8月30日 · Internal carotid artery (ICA) dissection, like arterial dissection elsewhere, is a result of blood entering the media through a tear in the intima 1 and is a common cause of stroke in younger patients.
Thoracic aortic aneurysm | Radiology Reference Article
2024年6月16日 · Thoracic aortic aneurysms are a type of thoraco-abdominal aneurysms and are relatively uncommon compared to abdominal aortic aneurysms. There is a wide range of causes, and the ascending aorta is the segment most commonly affected. Both CT-angiography and MR-angiography are the modalities of choice to image this condition.
Abdominal aortic aneurysm | Radiology Reference Article
2024年3月15日 · Dual-energy CT imaging of aortic aneurysms can discern the difference between iodinated contrast, calcified atheroma, and previous grafts or surgical materials. Post-processing techniques can create virtual non-calcium or non-enhanced images.
CT abdominal aorta (protocol) | Radiology Reference Article ...
2023年4月4日 · The indications for a CT of the abdominal aorta vary depending on an emergency versus outpatient presentation 1. Generally, the abdominal aorta is included in standard trauma imaging ( chest-abdomen-pelvis ), which includes an arterial chest and portal venous abdomen.
Aortic dissection | Radiology Case - Radiopaedia.org
The dissection extends to the right renal artery with evidence of diminished blood flow and atrophic renal changes. The left bronchus was seen narrowed by the large aortic dissection with subsequent total left lung collapse.
Stanford type A aortic dissection | Radiology Case - Radiopaedia.org
This is a Stanford type A aortic dissection. This case was initially thought to be a pulmonary embolism (PE) at triage due to the predominant initial symptom of shortness of breath.
Ascending aortic aneurysm | Radiology Reference Article
2024年7月26日 · Ascending aortic aneurysms may manifest as a widening of the aortic or mediastinal silhouettes. The ascending aorta usually does not form part of the right cardiomediastinal margin in the first five decades. If it does, suspect dilatation or aneurysm formation. CT/MRI
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