NATURAL HISTORY OF THROMBOSED AORTIC DISSECTION.EVALUATION WITH MEDICAL IMAGINGS.

本文对33例血栓性主动脉夹层患者进行了CT、MRI和计算机数字减影血管造影研究。在这36例患者中，31例发现溃疡样突出。溃疡样投影部位：升主动脉2例，主动脉弓1例，胸降主动脉68例，腹主动脉23例，盆腔动脉2例。其中，14例患者在双管型主动脉夹层的入口部位发现了14个溃疡样突起，12例患者在小分支的开口处发现了28个溃疡样突起。在29例83例溃疡样突出的患者中，评估溃疡样突出的自然史。15例22个病变发展为主动脉瘤，6例12个病变发展为主动脉夹层假腔再通。

Thirtythree patients with thrombosed aortic dissection were studied by CT,MRI,and computerized digital subtraction angiography.Of these 36 patients, 31 were found to have ulcerlike projection.As for the locations of ulcerlike projection, 2 were in the ascending aorta, 1 in the aortic arch, 68 in the descending thoracic aorta, 23 in the abdominal aorta, and 2 in the pelvic arteries.Out of this number, 14 ulcerlike projections in 14 patients were identified at the entry sites as commonly seen in double-barreled type aortic dissection, and 28 ulcerlike projections in 12 patients were detected at the orifices of the small branches.In 29 patients with 83 ulcerlike projections, the natural history of ulcerlike projections was evaluated.Twentytwo lesions in 15 patients progressed to aortic aneurysm, 12 lesions in 6 patients progressed to recanalization of the false lumen of aortic dissection.