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Renal artery velocity mapping with MR imaging
Author(s) -
Maier Stephan E.,
Scheidegger Markus B.,
Liu Kecheng,
Schneider E.,
Bellinger A.,
Boesiger Peter
Publication year - 1995
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/jmri.1880050609
Subject(s) - renal artery , medicine , abdominal aorta , blood flow , aortic bifurcation , radiology , aorta , artery , cardiology , sagittal plane , renal blood flow , percutaneous , nuclear medicine , hemodynamics , kidney
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 flow 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 flow. Two patients received therapy with percutaneous transluminal angioplasty. The successful outcome was documented with MR imaging. A reliable assessment of renal artery flow with MR phase imaging is feasible. Measurement of the velocity profiles yields valuable insights in the complicated flow regime at the renal artery bifurcation.