An efficient de-convolution reconstruction method for spatiotemporal-encoding single-scan 2D MRI

被引：38

作者：

Cai, Congbo ^{[1
]}

Dong, Jiyang ^{[2
]}

Cai, Shuhui ^{[2
]}

Li, Jing ^{[2
]}

Chen, Ying ^{[2
]}

Bao, Lijun ^{[2
]}

Chen, Zhong ^{[1
,2
]}

机构：

[1] Xiamen Univ, Dept Commun Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

[2] Xiamen Univ, Dept Elect Sci, Fujian Key Lab Plasma & Magnet Resonance, Xiamen 361005, Peoples R China

来源：

JOURNAL OF MAGNETIC RESONANCE | 2013年 / 228卷

关键词：

Single-scan MRI; Image reconstruction; Spatiotemporal-encoding; De-convolution; SPINAL-CORD; RESONANCE; SEQUENCE; GRAPPA; RASER; NMR; EPI;

D O I：

10.1016/j.jmr.2012.12.020

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Spatiotemporal-encoding single-scan MRI method is relatively insensitive to field inhomogeneity compared to EPI method. Conjugate gradient (CG) method has been used to reconstruct super-resolved images from the original blurred ones based on coarse magnitude-calculation. In this article, a new deconvolution reconstruction method is proposed. Through removing the quadratic phase modulation from the signal acquired with spatiotemporal-encoding MRI, the signal can be described as a convolution of desired super-resolved image and a point spread function. The de-convolution method proposed herein not only is simpler than the CG method, but also provides super-resolved images with better quality. This new reconstruction method may make the spatiotemporal-encoding 2D MRI technique more valuable for clinic applications. (C) 2013 Elsevier Inc. All rights reserved,

引用

页码：136 / 147

页数：12

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