Phase Unwrapping in Magnetic Resonance Elastography

Maharjan, Surendra and Numano, Tomokazu and Habe, Tetsushi and Ito, Daiki and Ueki, Takamichi and Igarashi, Keisuke and Maeno, Toshiki (2018) Phase Unwrapping in Magnetic Resonance Elastography. Open Journal of Medical Imaging, 08 (04). pp. 111-125. ISSN 2164-2788

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Abstract

Phase Unwrapping (PU) is an ill-posed problem in Magnetic Resonance Elastography (MRE). The phase information is not usable until the phases are retrieved by using PU algorithms. In this present study, we attempt to determine the ideal PU method for MRE using both phantom and volunteer psoas major (PM) muscle images. All the MRE experiments were carried out in Philips MRI (Achieva 3.0 T, Best, The Netherlands). A multi-echo gradient-echo MRE pulse sequence was employed and the four PU methods were considered based on their easy user platform. They are namely, Minimum Discontinuity (MD), Laplacian-Based Estimate (LBE), Region Growing (RG) and Dilate-Erode (DE) Propagate. Phantom images were successfully unwrapped by all four methods, whereas MD and LBE could only unwrap PM muscle images properly. RG and DE failed to unwrap the PM muscle images.

Item Type: Article
Subjects: Journal Eprints > Medical Science
Depositing User: Managing Editor
Date Deposited: 25 Mar 2023 12:46
Last Modified: 08 Apr 2024 09:27
URI: http://repository.journal4submission.com/id/eprint/1666

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