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  Four Channel Transceiver Array for Functional Magnetic Resonance Spectroscopy in the Human Visual Cortex at 9.4 T

Pfrommer, A., Avdievich, N., & Henning, A. (2014). Four Channel Transceiver Array for Functional Magnetic Resonance Spectroscopy in the Human Visual Cortex at 9.4 T. Poster presented at Joint Annual Meeting ISMRM-ESMRMB 2014, Milano, Italy.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-32F6-1 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-3736-5
Genre: Poster

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 Creators:
Pfrommer, Andreas1, 2, Author              
Avdievich, Nikolai1, 2, Author              
Henning, Anke1, 2, Author              
Affiliations:
1Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_2528692              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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 Abstract: RF coils for functional magnetic resonance spectroscopy at ultra-high field strength must be designed with high SNR, high transmit efficiency and optimized to guarantee SAR safety. With numerical EM simulations we compared two possible 4 channel RF coil setups for the application in the human visual cortex. It turned out that overlapping loop elements can provide 12.5 more B1+ /√SAR(10g) than without overlap for this particular case. Based on the simulation we have constructed a tight fit 4-channel transceiver head phased array. We could reach a B1+ of 63 µT in a 12.4x12.4 mm² sized voxel in the visual cortex region in a human head-and-shoulder phantom.

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 Dates: 2014-05
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: PfrommerAH2014
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Title: Joint Annual Meeting ISMRM-ESMRMB 2014
Place of Event: Milano, Italy
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Title: Joint Annual Meeting ISMRM-ESMRMB 2014
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 1305 Start / End Page: - Identifier: -