DocumentCode
3305718
Title
Simultaneous imaging method using phased array in MRI
Author
Zhang, Bida ; Wang, Weidong ; Song, Xiaoyu ; Chen, Guangfei ; Bao, Shanglian
Author_Institution
Inst. of Heavy Ion Phys., Peking Univ., Beijing, China
fYear
2002
fDate
17-19 Aug. 2002
Firstpage
501
Lastpage
504
Abstract
In this paper, two magnetic resonance imaging (MRI) fast imaging methods using a radiofrequency (RF) receiver coil array, named Spatial Local Fourier Encoding (SLFE) and Spatial RF Encoding (SRFE), are presented. The idea of an RF coil array and parallel acquisition is implanted from radar. This technique can accelerate MR imaging greatly, yet artifact is also provided. SLFE is an effective reconstruction method to reduce the localized artifact. Through coil design, the RF coil array can be applied for spatial encoding. Using SRFE, an image is acquired in a snapshot with a high signal-to-noise ratio (SNR) and the costly gradient system is saved. Mutual induction and the aliasing effect of adjacent coils are critical to the signal. The ideas of inverse source problem and wavelet transform (WT) can be introduced to eliminate them. Simulation result of was given by MATLAB.
Keywords
arrays; biomedical MRI; coils; image coding; image reconstruction; inverse problems; wavelet transforms; MATLAB simulation; MRI; RF receiver coil array; aliasing effect elimination; coil design; fast imaging methods; imaging reconstruction method; inverse source problem; localized artifact reduction; magnetic resonance imaging; mutual induction effect elimination; parallel acquisition; phased array; radiofrequency coil array; simultaneous imaging method; spatial RF encoding; spatial local Fourier encoding; wavelet transform; Acceleration; Coils; Encoding; Magnetic resonance imaging; Phased arrays; Radar imaging; Radio frequency; Reconstruction algorithms; Signal to noise ratio; Wavelet transforms;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on
Print_ISBN
0-7803-7486-X
Type
conf
DOI
10.1109/ICMMT.2002.1187746
Filename
1187746
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