Smith H J, Bakke S J
Department of Diagnostic Radiology, National Hospital, University of Oslo, Norway.
Acta Radiol. 1993 Mar;34(2):150-5.
Three-dimensional (3D) time-of-flight (TOF) MR angiography (MRA) was performed in 34 patients with suspected renal artery disease. In situ (i.e., nontransplanted) renal arteries were studied with MRA in 14 patients. Of these, 12 had conventional angiography for comparison. Twenty-four MRAs of transplanted renal arteries were obtained in 20 patients; 8 of these had angiography as well. Significant stenoses of in situ renal arteries were diagnosed with a sensitivity of 100% and a specificity of 95%. The stenoses were all proximal; 3D TOF MRA proved inadequate for depiction of peripheral renal arteries. MRA and angiography showed good agreement between findings in 7 of 8 patients with renal transplants. In one patient with a renal transplant, MRA showed a significant stenosis of the arterial anastomosis which appeared completely normal at i.a. DSA, indicating that findings at MRA still need to be confirmed by more established alternative methods.
对34例疑似肾动脉疾病患者进行了三维（3D）时间飞跃（TOF）磁共振血管造影（MRA）。14例患者对原位（即非移植）肾动脉进行了MRA检查。其中12例接受了传统血管造影以作对比。20例患者获得了24次移植肾动脉的MRA检查结果；其中8例也进行了血管造影。原位肾动脉显著狭窄的诊断敏感性为100%，特异性为95%。狭窄均位于近端；3D TOF MRA显示外周肾动脉显示不足。MRA和血管造影在8例肾移植患者中的7例检查结果显示出良好的一致性。在1例肾移植患者中，MRA显示动脉吻合口有显著狭窄，而在数字减影血管造影（DSA）检查中该吻合口完全正常，这表明MRA的检查结果仍需通过更成熟的替代方法进行确认。
