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)
Artikel, Bibliographie
Kurzbeschreibung (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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2001 |
| Autor(en): | Sack, I. ; Buntkowsky, G. ; Bernarding, J. ; Tolxdorff, T. ; Braun, J. |
| Art des Eintrags: | Bibliographie |
| Titel: | New approach for analyzing magnetic resonance elastography images |
| Sprache: | Deutsch |
| Publikationsjahr: | 2001 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Medical Imaging 2001: Physics of Medical Imaging |
| Jahrgang/Volume einer Zeitschrift: | 2 |
| (Heft-)Nummer: | 25 |
| Kurzbeschreibung (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. |
| Freie Schlagworte: | local frequency estimation coupled harmonic oscillators wave maps brain elasticity simulation visualization |
| Zusätzliche Informationen: | Bs75d Times Cited:0 Cited References Count:11 Proceedings of the Society of Photo-Optical Instrumentation Engineers (Spie) |
| Fachbereich(e)/-gebiet(e): | 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Physikalische Chemie 07 Fachbereich Chemie |
| Hinterlegungsdatum: | 27 Okt 2014 20:48 |
| Letzte Änderung: | 27 Okt 2014 20:48 |
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