| Echo Planar Diffusion-Weighted Imaging: Possibilities and Considerations with 12- and 32-Channel Head Coils. | |
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MedLine Citation:
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PMID: 22754745 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Interest in clinical brain magnetic resonance imaging using 32-channel head coils for signal reception continues to increase. The present investigation assesses possibilities for improving diffusion-weighted image quality using a 32-channel in comparison to a conventional 12-channel coil. The utility of single-shot (ss) and an approach to readout-segmented (rs) echo planar imaging (EPI) are examined using both head coils. Substantial image quality improvements are found with rs-EPI. Imaging with a 32-channel head coil allows for implementation of greater parallel imaging acceleration factors or acquisition of scans at a higher resolution. Specifically, higher resolution imaging with rs-EPI can be achieved by increasing the number of readout segments without increasing echo-spacing or echo time to the degree necessary with ss-EPI - a factor resulting in increased susceptibility artifact and reduced signal-to-noise with the latter. |
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Authors:
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John N Morelli; Megan R Saettele; Rajesh A Rangaswamy; Lan Vu; Clint M Gerdes; Wei Zhang; Fei Ai |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-5-23 |
Journal Detail:
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Title: Journal of clinical imaging science Volume: 2 ISSN: 2156-5597 ISO Abbreviation: - Publication Date: 2012 |
Date Detail:
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Created Date: 2012-7-3 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101564708 Medline TA: J Clin Imaging Sci Country: - |
Other Details:
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Languages: ENG Pagination: 31 Citation Subset: - |
Affiliation:
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Scott and White Hospital/Texas A&M HSC, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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