Renal artery velocity mapping with MR imaging

被引：20

作者：

Maier, SE ^{[1
]}

Scheidegger, MB ^{[1
]}

Liu, KC ^{[1
]}

Schneider, E ^{[1
]}

Bollinger, A ^{[1
]}

Boesiger, P ^{[1
]}

机构：

[1] UNIV ZURICH,INST BIOMED ENGN & MED INFORMAT,CH-8044 ZURICH,SWITZERLAND

来源：

JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING | 1995年 / 5卷 / 06期

关键词：

MR phase imaging; MR velocity mapping; blood flow; renal artery; abdominal aorta; vessel distension;

D O I：

10.1002/jmri.1880050609

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

An MR phase imaging sequence with a very short echo time was used to assess blood velocity and flow at the renal artery bifurcation. Cardiac-gated MR imaging data were obtained in six healthy subjects in sagittal planes adjacent to the abdominal aorta and transverse planes above and below the renal artery bifurcation. Average renal artery now rate was 23.8 +/- 9 mL/sec, A strong individual variability was found for the velocity profiles in the abdominal aorta during end-systolic regurgitation. Flow rate was also determined in three patients with reduced renal artery blood now, Two patients received therapy with percutaneous transluminal angioplasty. The successful outcome was documented with MR imaging. A reliable assessment of renal artery now with MR phase imaging is feasible, Measurement of the velocity process yields valuable insights in the complicated flow regime at the renal artery bifurcation.

引用

页码：669 / 676

页数：8

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