Model Independent MRE Data Analysis
Joint Authors
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-04-04
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
For the diagnosing modality called MRE (magnetic resonance elastography), the displacement vector of a wave propagating in a human tissue can be measured.
The average of the local wavelength from this measured data could be an index for the diagnosing, because the local wave length becomes larger when the tissue is stiffer.
By assuming that the local form of the wave is given approximately as multiple complex plane waves, we identify the real part of the complex linear phase of the strongest plane wave of this multiple complex plane waves, by first applying the FBI transform (Fourier-Bros-Iagolnitzer transform) with an appropriate size of Gaussian window and then taking the maximum of the modulus of the transform with respect to the Fourier variable.
The real part of the linear phase is nothing but the real inner product of the wave vector and the position vector.
Similarly the imaginary part of the linear phase describes the attenuation of the wave and it is given as a real inner product of a real vector and the position vector.
This vector can also be recovered by our method.
We also apply these methods to design some denoising and filtering for noisy MRE data.
American Psychological Association (APA)
Yoshikawa, Kogo& Nakamura, Gen. 2013. Model Independent MRE Data Analysis. Computational and Mathematical Methods in Medicine،Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-507551
Modern Language Association (MLA)
Yoshikawa, Kogo& Nakamura, Gen. Model Independent MRE Data Analysis. Computational and Mathematical Methods in Medicine No. 2013 (2013), pp.1-11.
https://search.emarefa.net/detail/BIM-507551
American Medical Association (AMA)
Yoshikawa, Kogo& Nakamura, Gen. Model Independent MRE Data Analysis. Computational and Mathematical Methods in Medicine. 2013. Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-507551
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-507551