通过斜角速度编码二维电影磁共振血管造影术测量总肾血流量和单侧肾血流量。

Measurement of total and unilateral renal blood flow by oblique-angle velocity-encoded 2D-cine magnetic resonance angiography.

作者信息

Lundin B, Cooper T G, Meyer R A, Potchen E J

机构信息

Department of Radiology, Michigan State University, East Lansing 48824.

出版信息

Magn Reson Imaging. 1993;11(1):51-9. doi: 10.1016/0730-725x(93)90411-6.

DOI:10.1016/0730-725x(93)90411-6

PMID:8423722

Abstract

Two independent measurements of total renal blood flow (RBF) were made in healthy human subjects (n = 14, mean age 30 yr) by CINE phase-contrast magnetic resonance angiography. RBF, measured by summing the flows measured in the right and left renal arteries, was 1152 +/- 44 ml/min (mean +/- SE). RBF, measured from the difference between supra- and infrarenal abdominal aorta flow, was 1109 +/- 68 ml/min. Regression analysis of the comparison of these two different RBF calculations yielded a correlation coefficient of 0.72 at a p < .05 level of significance. Based on other studies of RBF in normal subjects by para-aminohippuric acid (PAH) clearance, the expected RBF in this subject group was 1211 +/- 62 ml/min. The results indicate that noninvasive measurement of RBF is possible using phase-contrast magnetic resonance methods.

摘要

通过电影相位对比磁共振血管造影术，对健康人体受试者（n = 14，平均年龄30岁）进行了两次独立的总肾血流量（RBF）测量。通过将左右肾动脉测量的血流量相加来测量的RBF为1152 +/- 44 ml/分钟（平均值 +/- 标准误）。通过测量肾动脉上、下腹部主动脉血流量之间的差异来测量的RBF为1109 +/- 68 ml/分钟。对这两种不同RBF计算方法的比较进行回归分析，在p < 0.05的显著性水平下，相关系数为0.72。根据其他通过对氨基马尿酸（PAH）清除率对正常受试者进行的RBF研究，该受试者组的预期RBF为1211 +/- 62 ml/分钟。结果表明，使用相位对比磁共振方法可以进行RBF的无创测量。