SIMULATION OF SUSCEPTIBILITY ARTIFACTS IN 2D AND 3D FOURIER-TRANSFORM SPIN-ECHO AND GRADIENT-ECHO MAGNETIC-RESONANCE-IMAGING

被引:68
作者
BAKKER, CJG
BHAGWANDIEN, R
MOERLAND, MA
RAMOS, LMP
机构
[1] Department of Radiology, University Hospital Utrecht, 3584 CX Utrecht
[2] Department of Radiotherapy, University Hospital Utrecht, 3584 CX Utrecht
关键词
MAGNETIC RESONANCE IMAGING; SUSCEPTIBILITY ARTIFACTS; GEOMETRIC DISTORTION; T-2(ASTERISK) EFFECTS;
D O I
10.1016/0730-725X(94)92201-2
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
A method is presented for simulating susceptibility artifacts in 2D and 3D spin-echo and gradient-echo imaging of arbitrary susceptibility distributions. The method incorporates object induced field perturbations in the time domain (kappa-space) and is demonstrated for spherical nonuniformities in susceptibility. Both simulations and experimental results for multi-slice 2D and 3D imaging of phantoms and human subjects are provided.
引用
收藏
页码:767 / 774
页数:8
相关论文
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