| A 3D wavelet fusion approach for the reconstruction of isotropic-resolution MR images from orthogonal anisotropic-resolution scans. | |
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MedLine Citation:
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PMID: 21761448 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Hardware constraints, scanning time limitations, patient movement, and signal-to-noise ratio (SNR) considerations, restrict the slice-selection and the in-plane resolutions of MRI differently, generally resulting in anisotropic voxels. This nonuniform sampling can be problematic, especially in image segmentation and clinical examination. To alleviate this, the acquisition is divided into (two or) three separate scans, with higher in-plane resolutions and thick slices, yet orthogonal slice-selection directions. In this work, a noniterative wavelet-based approach for combining the three orthogonal scans is adopted, and its advantages compared with other existing methods, such as Fourier techniques, are discussed, including the consideration of the actual pulse response of the MRI scanner, and its lower computational complexity. Experimental results are shown on simulated and real 7 T MRI data. Magn Reson Med, 2011. © 2011 Wiley-Liss, Inc. |
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Authors:
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Iman Aganj; Christophe Lenglet; Essa Yacoub; Guillermo Sapiro; Noam Harel |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-7-14 |
Journal Detail:
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Title: Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine Volume: - ISSN: 1522-2594 ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-7-15 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8505245 Medline TA: Magn Reson Med Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Wiley-Liss, Inc. |
Affiliation:
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Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, Minnesota, USA; Center for Magnetic Resonance Research, University of Minnesota Medical School, Minneapolis, Minnesota, USA. iman@umn.edu. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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