| Suppression of vascular enhancement artifacts through the use of a multiband, selectively spoiled radiofrequency excitation pulse. | |
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MedLine Citation:
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PMID: 21509887 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To test the ability of a multi-band RF pulse to reduce flow enhancement artifacts for steady state imaging without compromising temporal resolution or spatial coverage. MATERIALS AND METHODS: Selectively spoiled composite RF pulses that provide simultaneous excitation and flow preparation were designed and tested by means of simulation, phantom, and in vivo measurements under varying conditions of flow. RESULTS: Suppression of flow enhancement was found to depend on flow velocity and spatial extent of spoiled regions. By determining necessary pulse characteristics for a given experimental geometry, flow enhancement was reduced and sensitivity to T(1)-reducing contrast agent was dramatically increased. CONCLUSION: These pulses provide an effective means of suppressing flow enhancement without sacrificing temporal resolution or spatial coverage. |
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Authors:
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Dustin K Ragan; James A Bankson |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of magnetic resonance imaging : JMRI Volume: 33 ISSN: 1522-2586 ISO Abbreviation: J Magn Reson Imaging Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-04-21 Completed Date: 2011-10-03 Revised Date: 2012-05-02 |
Medline Journal Info:
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Nlm Unique ID: 9105850 Medline TA: J Magn Reson Imaging Country: United States |
Other Details:
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Languages: eng Pagination: 1256-61 Citation Subset: IM |
Copyright Information:
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Copyright © 2011 Wiley-Liss, Inc. |
Affiliation:
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Department of Imaging Physics, The University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Algorithms Animals Artifacts Computer Simulation Contrast Media / pharmacology Diagnostic Imaging / methods Image Processing, Computer-Assisted / methods Magnetic Resonance Imaging / methods* Mice Models, Statistical Myocardium / pathology Time Factors |
| Grant Support | |
ID/Acronym/Agency:
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P30 CA016672-34/CA/NCI NIH HHS; U24 CA126577-03/CA/NCI NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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