Yamaguchi T, Guthaner D F, Wexler L
Department of Diagnostic Radiology, Stanford University Medical Center, CA 94305.
Radiology. 1989 Mar;170(3 Pt 1):743-7. doi: 10.1148/radiology.170.3.2916028.
To evaluate the false channel after surgical repair of a type A aortic dissection, postoperative computed tomographic (CT) scans were retrospectively reviewed in 33 patients. Initial CT demonstrated persistence of a double channel distal to the site of surgical repair in 26 patients (79%). In four of these patients serial CT demonstrated enlargement of the false channel, a finding that contributed to the decision to repeat surgery. Progression of thrombus was noted in five patients. Peripheral calcification within the aortic wall of the false channel, presumably located on the "pseudointima," was found in six patients. Because of the progressive nature of type A dissections in the postoperative period, serial CT examinations can provide important information on patients who have undergone surgical correction of a type A dissection.
为评估A型主动脉夹层手术修复后的假腔情况，我们对33例患者的术后计算机断层扫描（CT）进行了回顾性分析。初始CT显示，26例患者（79%）在手术修复部位远端存在双腔持续存在。其中4例患者的系列CT显示假腔扩大，这一发现促使了再次手术的决定。5例患者出现血栓进展。6例患者在假腔的主动脉壁内发现外周钙化，推测位于“假内膜”上。由于术后A型夹层的进展性，系列CT检查可为接受A型夹层手术矫正的患者提供重要信息。
