Improved field of view-reducing gradient insert: artifacts and application to cardiac imaging.
An improved homogeneity-spoiling local gradient insert has been constructed and built into the patient bed to reduce its impact on bore size and setup time. It allows the field of view to be reduced without introducing aliasing artifacts. Image quality and artifacts were evaluated for pulse sequences relevant to cardiac imaging. The utility of the insert is demonstrated by a contrast-enhanced perfusion study, in which the reduced field of view allowed a 25% increase in resolution and one more slice to be imaged per heartbeat. J. Magn. Reson. Imaging 1999;10:209-215.
Wiesler
D G
DG
The Laboratory of Cardiac Energetics, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892-1061, USA.
Wen
H
H
Wolff
S D
SD
Balaban
R S
RS
D000328:Adult; D016477:Artifacts; D003287:Contrast Media; D019786:Gadolinium DTPA; D006321:Heart / Q000033:anatomy & histology*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000295:instrumentation / Q000379:methods* / Q000706:statistics & numerical data; D008297:Male; D019047:Phantoms, Imaging / Q000706:statistics & numerical data; D013997:Time Factors
D003287:Contrast Media; D019786:Gadolinium DTPA