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  Flexible, phase-matched, linear receive arrays for high-field MRI in monkeys

Goense, J., Logothetis, N., & Merkle, H. (2010). Flexible, phase-matched, linear receive arrays for high-field MRI in monkeys. Magnetic Resonance Imaging, 28(8), 1183-1191. doi:10.1016/j.mri.2010.03.026.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-BDC0-A Version Permalink: http://hdl.handle.net/21.11116/0000-0002-6A77-2
Genre: Journal Article

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Goense, J1, 2, Author              
Logothetis, NK1, 2, Author              
Merkle, H, Author              
Affiliations:
1Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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 Abstract: High signal-to-noise ratios (SNR) are essential for high-resolution anatomical and functional MRI. Phased arrays are advantageous for this but have the drawback that they often have inflexible and bulky configurations. Particularly in experiments where functional MRI is combined with simultaneous electrophysiology, space constraints can be prohibitive. To this end we developed a highly flexible multiple receive element phased array for use on anesthetized monkeys. The elements are interchangeable and different sizes and combinations of coil elements can be used, for instance, combinations of single and overlapped elements. The preamplifiers including control electronics are detachable and can serve a variety of prefabricated and phase matched arrays of different configurations, allowing the elements to always be placed in close proximity to the area of interest. Optimizing performance of the individual elements ensured high SNR at the cortical surface as well as in deeper laying structures. Performance of a v ariety of arrangements of gapped linear arrays was evaluated at 4.7 and 7T in high-resolution anatomical and functional MRI.

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 Dates: 2010-10
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: DOI: 10.1016/j.mri.2010.03.026
BibTex Citekey: 6597
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Title: Magnetic Resonance Imaging
Source Genre: Journal
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Publ. Info: New York : Elsevier
Pages: - Volume / Issue: 28 (8) Sequence Number: - Start / End Page: 1183 - 1191 Identifier: ISSN: 0730-725X
CoNE: https://pure.mpg.de/cone/journals/resource/954925533026