Fast spiral magnetic resonance imaging with trapezoidal gradients.
A modified spiral imaging technique is presented, in which the conventional sinusoidal gradient waveforms are replaced by trapezoidal ones. In addition to allowing a reduced data acquisition time, the new waveforms circumvent specific hardware restrictions on the minimum scan repetition time.
Duyn
J H
JH
Laboratory of Diagnostic Radiology Research, OIR, National Institutes of Health Building 10, Room B1N-256, Bethesda, Maryland 20892, USA. jhd@helix.nih.gov
Yang
Y
Y
D001921:Brain / Q000033:anatomy & histology; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D012815:Signal Processing, Computer-Assisted