Wesbey G E, Higgins C B, Amparo E G, Hale J D, Kaufman L, Pogany A C
Radiology. 1985 Sep;156(3):733-9. doi: 10.1148/radiology.156.3.4023235.
The capability of magnetic resonance (MR) imaging for detecting aortic, iliac, and femoral stenoses and occlusions was evaluated. Multisection spin-echo studies at 0.35 tesla were obtained of the infrarenal aorta to the femoral bifurcation in 24 patients, all of whom had undergone intraarterial angiography within 14 days of imaging. Transaxial MR images were compared with the angiograms. Arterial stenoses and occlusions in these vessels detected by MR imaging correlated with angiographic findings in 91% of the instances. Protrusional atherosclerotic plaques and occlusions and stenoses in the aortoiliac region were demonstrated accurately on MR images; complications of previous vascular surgery, such as aneurysms at sites of previous anastomoses or endarterectomy, were also identified. Due to the limited spatial resolution, MR images failed to demonstrate some femoral stenoses. MR imaging may be used for evaluation of aortoiliac vascular disease and for follow-up study after surgical revascularization. However, the limited spatial resolution, noncomposite display of the aortoiliofemoral circulation, and lack of evaluation of peripheral runoff provided by current MR imaging techniques militate against its replacing angiography prior to vascular intervention.
评估了磁共振(MR)成像检测主动脉、髂动脉和股动脉狭窄及闭塞的能力。对24例患者进行了0.35特斯拉的多层面自旋回波研究,范围从肾下腹主动脉至股动脉分叉处,所有患者在成像后14天内均接受了动脉内血管造影。将横轴位MR图像与血管造影进行对比。MR成像检测到的这些血管中的动脉狭窄和闭塞与血管造影结果在91%的情况下相关。突出的动脉粥样硬化斑块以及主动脉髂动脉区域的闭塞和狭窄在MR图像上显示准确;既往血管手术的并发症,如既往吻合部位或动脉内膜切除术部位的动脉瘤,也能被识别。由于空间分辨率有限,MR图像未能显示一些股动脉狭窄。MR成像可用于评估主动脉髂动脉血管疾病以及手术血管重建后的随访研究。然而,当前MR成像技术的空间分辨率有限、主动脉髂股循环的非复合显示以及对外周血流情况评估的缺乏,不利于其在血管介入前取代血管造影。