Adaptive correction of imaging plane position in segmented k-space cine cardiac MRI.
Variability among breath-holds frequently produces registration errors, a situation that may contribute to reproducibility error in anatomic indices. A navigator-echo-based method for real-time prospective correction of imaging slice level was applied to breath-hold cine cardiac imaging of 13 subjects. Repeat acquisitions with correction in the cardiac short-axis orientation showed significantly improved reproducibility in fractional area change and endocardial centroid location as compared with conventional noncorrected methods.
Chuang
M L
ML
Charles A. Dana Research Institute, Boston, MA, USA.
Chen
M H
MH
Khasgiwala
V C
VC
McConnell
M V
MV
Edelman
R R
RR
Manning
W J
WJ
D000328:Adult; D005260:Female; D006801:Humans; D019028:Magnetic Resonance Imaging, Cine / Q000295:instrumentation / Q000379:methods*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012016:Reference Values; D012119:Respiration; D012680:Sensitivity and Specificity; D016277:Ventricular Function, Left / Q000502:physiology*