Breath-hold three-dimensional contrast-enhanced coronary MR angiography: motion-matched k-space sampling for reducing cardiac motion effects.
A view order that matches k-space sampling to cardiac motion within the acquisition window was developed for breath-hold three-dimensional contrast material-enhanced coronary magnetic resonance angiography. In vivo experiments in seven volunteers demonstrated that blurring was substantially reduced with this motion-matched view order as compared with the standard centric view order. Coronary arteries were well delineated.
Wang
Y
Y
Department of Radiology MR Research, Weill Medical College of Cornell University, 515 E 71st St, Suite S120, New York, NY 10021, USA. yiwang@mail.med.cornell.edu
Winchester
P A
PA
Yu
L
L
Watts
R
R
Ding
G
G
Lee
H M
HM
Bergman
G W
GW
D000328:Adult; D000465:Algorithms; D003287:Contrast Media; D003331:Coronary Vessels / Q000033:anatomy & histology*; D004562:Electrocardiography; D005240:Feasibility Studies; D005260:Female; D006321:Heart / Q000502:physiology*; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D009068:Movement; D009200:Myocardial Contraction / Q000502:physiology; D015588:Observer Variation; D012119:Respiration
D003287:Contrast Media