eprintid: 1736
rev_number: 9
eprint_status: archive
userid: 12
dir: disk0/00/00/17/36
datestamp: 2016-05-26 05:44:46
lastmod: 2016-12-07 15:51:44
status_changed: 2016-05-26 05:44:46
type: conference_item
metadata_visibility: show
creators_name: Tran, Duc Tan
creators_name: Dinh, Van Phong
creators_name: Truong, Minh Chinh
creators_name: Nguyen, Linh Trung
creators_id: tantd@vnu.edu.vn
creators_id: chinhmt@gmail.com
creators_id: linhtrung@vnu.edu.vn
title: Accelerated parallel magnetic resonance imaging with multi-channel chaotic compressed sensing
ispublished: pub
subjects: ECE
subjects: ElectronicsandComputerEngineering
divisions: fac_fet
abstract: Fast acquisition in magnetic resonance imaging (MRI) is considered in this paper. Often, fast acquisition is achieved using parallel imaging (pMRI) techniques. It has been shown recently that the combination of pMRI and compressed sensing (CS), which enables exact reconstruction of sparse or compressible signals from a small number of random measurements, can accelerate the speed of MRI acquisition because the number of measurements are much smaller than that by pMRI per se. Also recently in CS, chaos filters were designed to obtain chaotic measurements. This chaotic CS approach potentially offers simpler hardware implementation. In this paper, we combine chaotic CS and pMRI. However, instead of using chaos filters, the measurements are obtained by chaotically undersampling the k-space. MRI image reconstruction is then performed by using nonlinear conjugate gradient optimization. For pMRI, we use the well-known approach SENSE - sensitivity encoding -, which requires an estimation of the sensitivity maps. The performance of the proposed method is analyzed using the point spread function, the transform point spread function, and the reconstruction error measure.
date: 2010
date_type: published
full_text_status: public
pres_type: paper
pagerange: 146-151
event_title: The 2010 International Conference on Advanced Technologies for Communications (ATC)
event_location: Ho Chi Minh city, Vietnam
event_dates: 20-22 October 2010
event_type: conference
refereed: TRUE
citation:   Tran, Duc Tan and Dinh, Van Phong and Truong, Minh Chinh and Nguyen, Linh Trung  (2010) Accelerated parallel magnetic resonance imaging with multi-channel chaotic compressed sensing.  In: The 2010 International Conference on Advanced Technologies for Communications (ATC), 20-22 October 2010, Ho Chi Minh city, Vietnam.     
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/1736/1/52.pdf