Gilfeather M, Holland G A, Siegelman E S, Schnall M D, Axel L, Carpenter J P, Golden M A
Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia, USA.
Radiographics. 1997 Mar-Apr;17(2):423-32. doi: 10.1148/radiographics.17.2.9084082.
Gadolinium-enhanced ultrafast three-dimensional (3D) spoiled gradient-echo magnetic resonance (MR) imaging is a noninvasive method for evaluating the abdominal aorta and the visceral and iliac vessels. With an enhanced gradient system, 20-48 sections can be obtained during a single 18-32-second patient breath hold. The 3D volume obtained from a single acquisition can be reformatted at a workstation and the vascular anatomy viewed in any projection and with a variety of section thicknesses, making this MR imaging technique particularly useful in the evaluation of aberrant arteries, vascular stenoses, aneurysms, and dissection flaps. Gadolinium-enhanced ultrafast 3D spoiled gradient-echo MR imaging has been used instead of or in addition to conventional contrast material-enhanced MR angiography in patients who have chronic symptoms of mesenteric ischemia, who have abdominal aortic aneurysms, or who are at risk for iodinated contrast material-related renal dysfunction. This technique shows great promise for accurate and noninvasive evaluation of the abdominal aorta and the visceral and iliac vessels.
钆增强超快三维（3D）扰相梯度回波磁共振（MR）成像，是一种用于评估腹主动脉、内脏血管和髂血管的非侵入性方法。借助增强梯度系统，在患者单次屏气18 - 32秒期间可获得20 - 48层图像。从单次采集获得的3D容积数据可在工作站进行重新格式化处理，血管解剖结构能以任何投影方式并采用多种层厚进行查看，这使得这种MR成像技术在评估异常动脉、血管狭窄、动脉瘤及夹层瓣方面特别有用。钆增强超快3D扰相梯度回波MR成像已被用于患有肠系膜缺血慢性症状、腹主动脉瘤或有碘造影剂相关肾功能不全风险的患者，替代传统对比剂增强MR血管造影或作为其补充。这项技术在准确、非侵入性评估腹主动脉、内脏血管和髂血管方面显示出巨大潜力。
