Cardiac function: MR evaluation in one breath hold with real-time true fast imaging with steady-state precession.
In 12 healthy volunteers and eight patients with cardiac disease, cine magnetic resonance (MR) imaging in the heart was performed with real-time true fast imaging with steady-state precession (FISP), which permitted evaluation of the entire left ventricle in one breath hold (91 msec per frame, 13 frames per section position, nine short-axis section positions per breath hold). Contrast-to-noise ratios (CNRs) and left ventricular mass and function measurements with this technique were compared in all subjects with single-section true FISP imaging and, in the volunteers only, with segmented fast low-angle shot (FLASH) MR imaging. Myocardium-to-blood CNR was significantly higher for both true FISP sequences compared with the FLASH sequence. Measurements of resting left ventricular function with real-time true FISP imaging were comparable with those derived from a series of separate breath-hold single-section true FISP acquisitions.
Lee
Vivian S
VS
Department of Radiology-MRI, New York University Medical Center, 530 First Ave, HCC Basement, New York, NY 10016, USA. lee@mri.med.nyu.edu
Resnick
Daniel
D
Bundy
Jeffrey M
JM
Simonetti
Orlando P
OP
Lee
Peter
P
Weinreb
Jeffrey C
JC
D000328:Adult; D000368:Aged; D005260:Female; D006331:Heart Diseases / Q000175:diagnosis / Q000473:pathology / Q000503:physiopathology; D006352:Heart Ventricles / Q000473:pathology*; D006801:Humans; D019028:Magnetic Resonance Imaging, Cine / Q000379:methods*; D008297:Male; D008875:Middle Aged; D012119:Respiration; D013318:Stroke Volume; D016277:Ventricular Function, Left