TY  - JOUR
ID  - SisLab1358
UR  - https://eprints.uet.vnu.edu.vn/eprints/id/eprint/1358/
IS  - 3-4
A1  - Nguyen, Linh Trung
A1  - Truong, Minh Chinh
A1  - Tran, Duc Tan
A1  - Le, Vu Ha
A1  - Do, Ngoc Minh
Y1  - 2013/12/01/
N2  - Fast image acquisition in magnetic resonance imaging (MRI) is important, due to the need to find ways that help relieve patient?s stress during MRI scans. Methods for fast MRI have been proposed, most notably among them are pMRI
(parallel MRI), SWIFT (SWeep Imaging with Fourier Transformation), and compressed sensing (CS) based MRI. Although it promises to significantly reduce acquisition time, applying CS to MRI leads to difficulties with hardware design because of the randomness nature of the measurement matrix used by the conventional CS methods. In this paper, we propose a novel method that combines the above-mentioned three approaches for fast MRI by designing a compound measurement matrix from a series of single measurement matrices corresponding to pMRI, SWIFT, and CS. In our method, the CS measurement matrix  is  designed  to  be  deterministic via chaotic systems.  This  chaotic  compressed  sensing  (CCS)  measurement  matrix, while retaining most features of the random CS matrix, is simpler to realize in hardware. Several compound measurement
matrices have been constructed and examined in this work, including CCS-MRI, CCS-pMRI, CCS-SWIFT, and CCS-pSWIFT.
Simulation results showed that the proposed method allows an increase in the speed of the MRI acquisition process while not compromising the quality of the acquired MR images.
PB  - REV
JF  - REV Journal on Electronics and Communications
VL  - 3
SN  - 1859-387X
TI  - Chaotic Compressed Sensing and its Application in Magnetic Resonance Imaging
SP  - 84
AV  - public
EP  - 92
ER  -