Wambeek N D, Cameron D C, Holden A
Department of Radiology, Royal Perth Hospital, Western Australia, Australia.
Australas Radiol. 1996 Nov;40(4):442-6. doi: 10.1111/j.1440-1673.1996.tb00444.x.
We present 10 cases of intramural aortic dissection. The cases are all characterized by the presence of intramural haematoma without the presence of a patent false lumen. The radiological features and possible aetiologies are discussed. The key radiological finding is the presence of a hyperdense rim in the aortic wall on a non-contrast-enhanced computed tomography (CT) scan. In one case, a delayed diagnosis was made using magnetic resonance imaging (MRI). In a further case, the delayed development of a large aortic ulcer was demonstrated. Intramural aortic dissection has only recently been described in the radiological literature. The aetiology of this condition remains controversial. The imaging findings may be subtle and the diagnosis is still frequently being overlooked. We believe CT to be the primary diagnostic test for this condition, and its advantages over MRI and transoesophageal echocardiography (TOE) are discussed.
我们报告了10例主动脉壁内夹层病例。这些病例的共同特征是存在壁内血肿且无明显的假腔。本文讨论了其影像学特征及可能的病因。关键的影像学表现是在非增强计算机断层扫描（CT）上主动脉壁出现高密度边缘。其中1例经磁共振成像（MRI）诊断延误。另有1例显示出大型主动脉溃疡的延迟发展。主动脉壁内夹层直到最近才在放射学文献中被描述。这种疾病的病因仍存在争议。其影像学表现可能不明显，诊断仍经常被忽视。我们认为CT是诊断这种疾病的主要检查方法，并讨论了其相对于MRI和经食管超声心动图（TOE）的优势。
