Gadolinium-enhanced ultrafast three-dimensional spoiled gradient-echo MR imaging of the abdominal aorta and visceral and iliac vessels.
Gadolinium-enhanced ultrafast three-dimensional spoiled gradient-echo MR imaging of the abdominal aorta and visceral and iliac vessels.
复制标题
腹主动脉、内脏和髂血管的钆增强超快三维破坏梯度回波 MR 成像。
作者：
M. Gilfeather;G. Holland;E. Siegelman;M. Schnall;L. Axel;J. Carpenter;M. Golden
钆增强超快三维 (3D) 破坏梯度回波磁共振 (MR) 成像是一种用于评估腹主动脉以及内脏和髂血管的无创方法。通过增强的梯度系统，患者在 18-32 秒屏气期间可以获得 20-48 个切片。从单次采集获得的 3D 体积可以在工作站上重新格式化，并可以在任何投影和各种切片厚度下查看血管解剖结构，使得这种 MR 成像技术在评估异常动脉、血管狭窄、动脉瘤和夹层瓣时特别有用。钆增强超快 3D 破坏梯度回波 MR 成像已被用于替代传统造影剂增强 MR 血管造影或作为其补充，用于患有肠系膜缺血慢性症状、患有腹主动脉瘤或有碘造影剂相关肾功能障碍风险的患者。该技术为腹主动脉、内脏血管和髂血管的准确和无创评估带来了巨大的希望。
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.