Title: High resolution MRI image reconstruction from a PROPELLER data set of samples

Authors: Krzysztof Malczewski, Ryszard Stasinski

Addresses: Department of Electronics and Telecommunications, Poznan University of Technology, Poland. ' Department of Electronics and Telecommunications, Poznan University of Technology, Poland

Abstract: Magnetic Resonance Imaging (MRI) image reconstruction, based on the frequency domain Super-Resolution (SR) algorithm, is presented in the paper. It is shown that the approach improves MRI spatial resolution in cases where Periodically Rotated Overlapping Parallel Lines with Enhanced Reconstruction (PROPELLER) sequences are used. The PROPELLER MRI method collects data in rectangular |blades| rotated around the origin of the k-space. Inter-blade patient motion is the premise for the use of SR technique. Images obtained from sets of irregularly located frequency domain samples are combined into the high resolution MRI image. The SR reconstruction replaces the usually applied direct averaging of low-resolution images.

Keywords: magnetic resonance imaging; MRI image reconstruction; PROPELLER; periodically rotated overlapping parallel lines; enhanced reconstruction; MRI blade based sequence; super-resolution reconstruction; image fusion; inter-blade patient motion.

DOI: 10.1504/IJFIPM.2008.021394

International Journal of Functional Informatics and Personalised Medicine, 2008 Vol.1 No.3, pp.311 - 320

Published online: 22 Nov 2008 *

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