DIFFUSION;
KIDNEY;
MR STUDIES;
MAGNETIC RESONANCE (MR);
DIFFUSION STUDY;
PERFUSION STUDY;
PULSE SEQUENCES;
PHYSICS;
PERFUSION;
RENAL ARTERIES;
STENOSIS OR OBSTRUCTION;
D O I:
10.1148/radiology.178.2.1987621
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:
The intravoxel incoherent motion (IVIM) model of perfusion and diffusion imaging was applied to an in vivo canine model of unilateral renal artery stenosis and was compared with relative renal blood flow determination with radioactive microspheres. The percentage relative renal blood flow as determined with radioactive microspheres correlated closely with the percentage apparent diffusion coefficient. If this method can be adapted to human imaging, it may provide a non-invasive means for detecting renal artery stenosis.