Ultra-fast brain MR imaging using simultaneous multi-slice acquisition (SMA) technique.
Whole-brain images were acquired with a 2X acceleration factor by using Simultaneous Multi-slice Acquisition (SMA). Utilizing a Sinc pulse modulated by cosine/sine functions combined with an extra gradient along the slice-selection direction during acquisition, we are able to take multiple magnetic resonance images of different slice simultaneously. 2-slice and 4-slice SMA experiments were also conducted to demonstrate the feasibility of this method; also a volumetric image of the phantom was taken, achieving an overall 3X acceleration.
Wu
Edzer L
EL
Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan.
Kuo
Li-Wei
LW
Wu
Fu-Hsing
FH
Hsu
Chien-Fang
CF
Hsieh
Chang-Wei
CW
Chen
Jyh-Horng
JH
Chiueh
Tzi-Dar
TD
D001921:Brain / Q000033:anatomy & histology*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging / Q000379:methods*; D019047:Phantoms, Imaging