Sack, I. ; Buntkowsky, G. ; Bernarding, J. ; Tolxdorff, T. ; Braun, J. (2001):
New approach for analyzing magnetic resonance elastography images.
In: Medical Imaging 2001: Physics of Medical Imaging, 2 (25), pp. 868-874 936. [Article]
Abstract
A new method for evaluating Magnetic Resonance Elastography (MRE) wave images is introduced, which consists of both local frequency estimation (LIFE) and simulation of wave patterns by a coupled harmonic oscillator (CHO) approach. It is shown that i) LFE performs improved reconstruction by use of Gauss filters and ii) CHO calculations can help to refine the resulting wave speed or elasticity map by taking local attenuation, reflection, and diffraction into account. The performance of new LIFE and CHO calculations is demonstrated by MRE experiments on a gel phantom as well as by simulations of shear waves in a brain phantom, such as for potential in-vivo MRE-experiments.
| Item Type: | Article |
|---|---|
| Erschienen: | 2001 |
| Creators: | Sack, I. ; Buntkowsky, G. ; Bernarding, J. ; Tolxdorff, T. ; Braun, J. |
| Title: | New approach for analyzing magnetic resonance elastography images |
| Language: | German |
| Abstract: | A new method for evaluating Magnetic Resonance Elastography (MRE) wave images is introduced, which consists of both local frequency estimation (LIFE) and simulation of wave patterns by a coupled harmonic oscillator (CHO) approach. It is shown that i) LFE performs improved reconstruction by use of Gauss filters and ii) CHO calculations can help to refine the resulting wave speed or elasticity map by taking local attenuation, reflection, and diffraction into account. The performance of new LIFE and CHO calculations is demonstrated by MRE experiments on a gel phantom as well as by simulations of shear waves in a brain phantom, such as for potential in-vivo MRE-experiments. |
| Journal or Publication Title: | Medical Imaging 2001: Physics of Medical Imaging |
| Volume of the journal: | 2 |
| Issue Number: | 25 |
| Uncontrolled Keywords: | local frequency estimation coupled harmonic oscillators wave maps brain elasticity simulation visualization |
| Divisions: | 07 Department of Chemistry > Physical Chemistry 07 Department of Chemistry |
| Date Deposited: | 27 Oct 2014 20:48 |
| Additional Information: | Bs75d Times Cited:0 Cited References Count:11 Proceedings of the Society of Photo-Optical Instrumentation Engineers (Spie) |
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