Rapid Magnetic Resonance Imaging Using Undersampled Projection-Onto-Convex-Sets Reconstruction

Authors(2) :-Mohammad Sabati, Leila Borvayeh

Scan time reduction is important in clinical magnetic resonance imaging (MRI). Partial Fourier data acquisitions rely on the conjugate symmetry of Hermitian data, allowing for shorter scan times due to fewer phase-encoding steps needed during the MRI data acquisition. Estimation of the missing k-space MR data is then usually accomplished by direct conjugate synthesis (e.g., homodyne reconstruction) or by iterative constraint-based algorithms (e.g., projection-onto-convex sets, POCS). Faster image acquisition has been achieved by combining partial Fourier acquisitions with parallel MRI. In this study, an iterative partial Fourier reconstruction method based on POCS technique is presented for sharply decreasing MRI scan times. It is achieved by asymmetrically undersampling k-space MR data acquired using a multi-element MRI receive coil. The results obtained from experimental models (phantoms) and humans shows that the proposed method can rapidly produce high-quality MR images with high acceleration rates.

Authors and Affiliations

Mohammad Sabati
Department of Electrical Engineering, Australian College of Kuwait, West Mishref, Kuwait Department of Radiology, Miller School of Medicine, University of Miami, Miami, FL, USA
Leila Borvayeh
Department of Mathematics, Australian College of Kuwait, West Mishref, Kuwait

MRI, Image Reconstruction, Rapid MRI Data Acquisition, POCS, Parallel Imaging

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Publication Details

Published in : Volume 3 | Issue 6 | September-October 2017
Date of Publication : 2017-10-31
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 704-709
Manuscript Number : IJSRSET1736169
Publisher : Technoscience Academy

Print ISSN : 2395-1990, Online ISSN : 2394-4099

Cite This Article :

Mohammad Sabati, Leila Borvayeh, " Rapid Magnetic Resonance Imaging Using Undersampled Projection-Onto-Convex-Sets Reconstruction, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 6, pp.704-709, September-October-2017.
Journal URL : http://ijsrset.com/IJSRSET1736169

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