Rofsky N M, Weinreb J C, Grossi E A, Galloway A C, Libes R B, Colvin S B, Naidich D P
Department of Radiology, New York University Medical Center, NY 10016.
Radiology. 1993 Jan;186(1):195-201. doi: 10.1148/radiology.186.1.8416564.
The normal range of postoperative imaging findings are described in 34 asymptomatic patients studied 5-66 months (mean, 28 months) after undergoing the continuous-suture graft-inclusion technique for repair of aortic aneurysms (n = 20) and dissections (n = 14) involving the ascending aorta. All 34 patients underwent magnetic resonance (MR) imaging, and 24 patients also underwent computed tomography (CT). Perigraft thickening was seen in 19 patients (56%) with MR imaging and in eight patients (33%) with CT. Flow outside the graft but contained within the native wrap was noted in five patients (15%) with MR imaging and in four patients (17%) with contrast material-enhanced CT. Thrombus was identified outside the graft and within the wrap in seven patients (21%) with MR imaging and in six patients (25%) with CT. Mass effect on the graft was depicted in four patients (12%) with MR imaging and in three patients (13%) with CT. Of the 14 patients who underwent repair of aortic dissections, an intimal flap was seen distal to the graft in seven of the 14 (50%) evaluated with MR imaging and in four of the 10 (40%) evaluated with contrast-enhanced CT. An accurate postoperative imaging evaluation requires precise knowledge of the surgical technique performed and its anatomic consequences.
对34例无症状患者进行了术后影像学检查结果的正常范围描述，这些患者在采用连续缝合移植物植入技术修复升主动脉瘤（n = 20）和夹层（n = 14）后5 - 66个月（平均28个月）接受了研究。所有34例患者均接受了磁共振（MR）成像检查，24例患者还接受了计算机断层扫描（CT）检查。19例（56%）接受MR成像检查的患者和8例（33%）接受CT检查的患者出现了移植物周围增厚。5例（15%）接受MR成像检查的患者和4例（17%）接受对比剂增强CT检查的患者发现移植物外但包含在天然包裹内有血流。7例（21%）接受MR成像检查的患者和6例（25%）接受CT检查的患者在移植物外和包裹内发现了血栓。4例（12%）接受MR成像检查的患者和3例（13%）接受CT检查的患者显示对移植物有占位效应。在14例接受主动脉夹层修复的患者中，14例中有7例（50%）接受MR成像评估的患者和10例中有4例（40%）接受对比增强CT评估的患者在移植物远端可见内膜瓣。准确的术后影像学评估需要对所采用的手术技术及其解剖学后果有精确的了解。
