| Flexible transceiver array for ultrahigh field human MR imaging. | |
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MedLine Citation:
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PMID: 22246803 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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A flexible transceiver array, capable of multiple-purpose imaging applications in vivo at ultrahigh magnetic fields was designed, implemented and tested on a 7 T MR scanner. By alternately placing coil elements with primary and secondary harmonics, improved decoupling among coil elements was accomplished without requiring decoupling circuitry between resonant elements, which is commonly required in high-frequency transceiver arrays to achieve sufficient element-isolation during radiofrequency excitation. This flexible array design is capable of maintaining the required decoupling among resonant elements in different array size and geometry and is scalable in coil size and number of resonant elements (i.e., number of channels), yielding improved filling factors for various body parts with different geometry and size. To investigate design feasibility, flexibility, and array performance, a multichannel, 16-element transceiver array was designed and constructed, and in vivo images of the human head, knee, and hand were acquired using a whole-body 7 T MR system. Seven Tesla parallel imaging with generalized autocalibrating partially parallel acquisitions (GRAPPA) performed using this flexible transceiver array was also presented. Magn Reson Med, 2012. © 2012 Wiley Periodicals, Inc. |
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Authors:
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Bing Wu; Xiaoliang Zhang; Chunsheng Wang; Ye Li; Yong Pang; Jonathan Lu; Duan Xu; Sharmila Majumdar; Sarah J Nelson; Daniel B Vigneron |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-1-13 |
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: 2012 Jan |
Date Detail:
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Created Date: 2012-1-16 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 © 2012 Wiley Periodicals, Inc. |
Affiliation:
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Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, California, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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