Pressure-gated acquisition of cardiac MR images.
Electrocardiographically gated magnetic resonance (MR) image acquisition is not optimal for the quantification of in vivo cardiac deformation, because of the cycle-length dependence of cardiac mechanical events. The authors developed a method for acquisition of cardiac MR images gated to the first derivative of left-ventricular-developed pressure and used the method in a canine model. Application of this method may improve myocardial stress-strain analyses.
Pirolo
J S
JS
Department of Surgery, Barnes Hospital, St Louis, MO 63110.
Branham
B H
BH
Creswell
L L
LL
Perman
W H
WH
Vannier
M W
MW
Pasque
M K
MK
D000818:Animals; D003971:Diastole; D004285:Dogs; D015637:Gated Blood-Pool Imaging / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D009200:Myocardial Contraction / Q000502:physiology*; D013599:Systole