3-D FLASH imaging using a single surface coil and a new adiabatic pulse, BIR-4.
A new adiabatic pulse, which can induce uniform and arbitrary flip angles despite the presence of transmitter coil magnetic field (B1) inhomogeneities, is employed for 3-D fast imaging using a single surface coil for pulse transmission and signal detection. Computer calculations and phantom, rat, and human surface coil imaging experiments demonstrate the utility of this adiabatic pulse for T1-weighted imaging with a transmitter coil which generates a highly inhomogeneous B1 field profile.
Staewen
R S
RS
Department of Radiology, University of Minnesota, Minneapolis.
Johnson
A J
AJ
Ross
B D
BD
Parrish
T
T
Merkle
H
H
Garwood
M
M
D000818:Animals; D001921:Brain / Q000033:anatomy & histology; D001932:Brain Neoplasms / Q000175:diagnosis; D005910:Glioma / Q000175:diagnosis; D006801:Humans; D007717:Knee / Q000033:anatomy & histology; D008279:Magnetic Resonance Imaging / Q000295:instrumentation / Q000379:methods*; D008961:Models, Structural; D051381:Rats; D011916:Rats, Inbred F344