Motion of the proximal renal artery during the cardiac cycle.
In 48 hypertensive patients, the motion of the proximal renal artery during the cardiac cycle was quantified using two-dimensional quantitative flow (QF) measurements and automatic contour detection. Substantial translational motion was observed with an amplitude ranging from 1 to 4 mm. Since motion effectively reduces spatial resolution, the use of motion suppression techniques should be strongly considered for renal MR angiography. J. Magn. Reson. Imaging 2000;12:924-928.
Kaandorp
D W
DW
University Hospital Maastricht, Department of Radiology, Maastricht, The Netherlands. dka@rdia.azm.nl
Vasbinder
G B
GB
de Haan
M W
MW
Kemerink
G J
GJ
van Engelshoven
J M
JM
D000328:Adult; D000368:Aged; D016477:Artifacts; D005260:Female; D006439:Hemodynamics / Q000502:physiology*; D006801:Humans; D006977:Hypertension, Renal / Q000175:diagnosis / Q000503:physiopathology*; D007091:Image Processing, Computer-Assisted; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction / Q000502:physiology*; D009131:Muscle, Smooth, Vascular / Q000503:physiopathology; D012016:Reference Values; D012077:Renal Artery / Q000503:physiopathology*; D012189:Retrospective Studies