Conference proceeding
Improved MRSI with field inhomogeneity compensation
Proceedings of SPIE, Vol.6144(1), pp.614467-614467
Medical Imaging 2006: Image Processing
03/02/2006
DOI: 10.1117/12.651868
Abstract
Magnetic resonance spectroscopy imaging (MRSI) is a promising and developing tool in medical imaging. Because of various difficulties imposed by the imperfections of the scanner and the reconstruction algorithms, its applicability in clinical practice is rather limited. In this paper, we suggest an extension of the constrained
reconstruction technique (SLIM). Our algorithm, named B-SLIM, takes into account the the measured field inhomogeneity map, which contains both the scanner's main field inhomogeneity and the object-dependent magnetic susceptibility effects. The method is implemented and tested both with synthetic and physical two-compartment phantom data. The results demonstrate significant performance improvement over the SLIM technique. At the same time, the algorithm has the same computational complexity as SLIM.
Details
- Title: Subtitle
- Improved MRSI with field inhomogeneity compensation
- Creators
- Ildar Khalidov - École Polytechnique Fédérale de Lausanne (Switzerland)Dimitri Van De Ville - École Polytechnique Fédérale de Lausanne (Switzerland)Mathews Jacob - Univ. of Illinois at Urbana-ChampaignFrançois Lazeyras - Univ. Hospital of Geneva (Switzerland)Michael Unser - École Polytechnique Fédérale de Lausanne (Switzerland)
- Resource Type
- Conference proceeding
- Publication Details
- Proceedings of SPIE, Vol.6144(1), pp.614467-614467
- Conference
- Medical Imaging 2006: Image Processing
- DOI
- 10.1117/12.651868
- ISSN
- 0277-786X
- Language
- English
- Date published
- 03/02/2006
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Radiology; Electrical and Computer Engineering; Iowa Neuroscience Institute; Radiation Oncology
- Record Identifier
- 9984070622802771
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