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Optimization of sensitivity encoding with arbitrary k-space trajectories.
Magn Reson Imaging. 2007 Oct; 25(8):1123-9.MR

Abstract

Sensitivity encoding (SENSE) is a magnetic resonance technique that unifies gradient and receive coil encoding. SENSE reconstructs the image by solving a large, ill-conditioned inverse problem, which generally requires regularization and preconditioning. The present study suggests a simple heuristic for determining the regularization parameter. Also discussed are the use of density weighting and intensity correction as preconditioners and the role that coil sensitivity estimation has in regularization. A modification to the intensity correction is proposed for use with a phase constraint.

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Authors+Show Affiliations

Bydder M
Department of Radiology, MRI3 Research, University of California San Diego, San Diego, CA 92103-8226, USA. mbydder@ucsd.edu
Perthen JE
No affiliation info available
Du J
No affiliation info available

MeSH

AlgorithmsBrainHumansImage EnhancementImage Interpretation, Computer-AssistedInformation Storage and RetrievalMagnetic Resonance ImagingReproducibility of ResultsSensitivity and Specificity

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17905244

Citation

Bydder, Mark, et al. "Optimization of Sensitivity Encoding With Arbitrary K-space Trajectories." Magnetic Resonance Imaging, vol. 25, no. 8, 2007, pp. 1123-9.
Bydder M, Perthen JE, Du J. Optimization of sensitivity encoding with arbitrary k-space trajectories. Magn Reson Imaging. 2007;25(8):1123-9.
Bydder, M., Perthen, J. E., & Du, J. (2007). Optimization of sensitivity encoding with arbitrary k-space trajectories. Magnetic Resonance Imaging, 25(8), 1123-9.
Bydder M, Perthen JE, Du J. Optimization of Sensitivity Encoding With Arbitrary K-space Trajectories. Magn Reson Imaging. 2007;25(8):1123-9. PubMed PMID: 17905244.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Optimization of sensitivity encoding with arbitrary k-space trajectories. AU - Bydder,Mark, AU - Perthen,Joanna E, AU - Du,Jiang, Y1 - 2007/02/20/ PY - 2006/10/02/received PY - 2006/12/24/revised PY - 2007/01/05/accepted PY - 2007/10/2/pubmed PY - 2007/12/6/medline PY - 2007/10/2/entrez SP - 1123 EP - 9 JF - Magnetic resonance imaging JO - Magn Reson Imaging VL - 25 IS - 8 N2 - Sensitivity encoding (SENSE) is a magnetic resonance technique that unifies gradient and receive coil encoding. SENSE reconstructs the image by solving a large, ill-conditioned inverse problem, which generally requires regularization and preconditioning. The present study suggests a simple heuristic for determining the regularization parameter. Also discussed are the use of density weighting and intensity correction as preconditioners and the role that coil sensitivity estimation has in regularization. A modification to the intensity correction is proposed for use with a phase constraint. SN - 0730-725X UR - https://www.unboundmedicine.com/medline/citation/17905244/Optimization_of_sensitivity_encoding_with_arbitrary_k_space_trajectories_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0730-725X(07)00004-5 DB - PRIME DP - Unbound Medicine ER -