2024年12月4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 ...

An acute aortic dissection classically presents with severe chest, abdominal, or back pain, of maximum intensity at or shortly after its appearance, and qualitatively described as "ripping" or "tearing."

It divides the aortic lumen into small true lumen and larger (partially thrombosed) false lumen. Aneurysmal dilatation of the descending thoracic and supra-renal abdominal aorta. The celiac, mesenteric and renal arteries arise from the true lumen.

2020年5月28日 · The windsock sign refers to appearances seen in type A thoracic aortic dissections on contrast CT. It results from intimointimal intussusception between the true and false dissected lumens of the thoracic aorta .

This aortic dissection is classified as Stanford A or DeBakey type I which involves the aorta proximal to the left subclavian artery and requires further surgical intervention to avoid coronary artery occlusion or cardiac tamponade.

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.

2024年10月18日 · Both the Stanford and DeBakey systems can be used to describe all forms of an acute aortic syndrome (dissection, aneurysm, penetrating atherosclerotic ulcer, and intramural hematoma).

2024年5月28日 · A triple rule out (TRO) protocol is a cardiac CT protocol that aims to assess for different problems at the same time in one single examination: obstructive coronary artery disease, aortic dissection or pulmonary embolism.

2024年2月23日 · The beak sign of arterial dissection is the acute angle formed at the edge of the false lumen in aortic dissection in axial cross-section. It is formed by the borders of the outer aortic wall and the intimal flap, and may be partially thrombosed (blunted beak).

2025年1月24日 · aortic dissection. aortic intramural hematoma. penetrating atherosclerotic ulcer. Treatment. The location of the pathology determines the treatment, rather than the type of vascular wall injury.