Optimization of the Transceiver Phased Array for Human Brain Imaging at 9.4T: 
Loop Overlapping Rediscovered

Avdievich, NI; Giapitzakis, IA; Pfrommer, A; Henning, A

Optimization of the Transceiver Phased Array for Human Brain Imaging at 9.4T: Loop Overlapping Rediscovered

Avdievich, N., Giapitzakis, I., Pfrommer, A., & Henning, A. (2016). Optimization of the Transceiver Phased Array for Human Brain Imaging at 9.4T: Loop Overlapping Rediscovered. In 24th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2016).

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アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-0000-7CE6-2 版のパーマリンク: https://hdl.handle.net/21.11116/0000-0000-E985-3

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Avdievich, NI^{1, 2, 3}, 著者
Giapitzakis, IA^{1, 2, 3}, 著者
Pfrommer, A^{1, 3}, 著者
Henning, A^{1, 2, 3}, 著者

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1Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_2528692
2Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796
3Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794

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要旨: Ultra-high field (UHF) (>7T) transmit (Tx) and transceiver surface loop phased arrays improve Tx-efficiency and homogeneity for human brain imaging. Overlapping the loops enhances Tx-efficiency and SNR by increasing the penetration depth. However, overlapping can compromise decoupling and SNR by generating a substantial mutual resistance. Therefore, UHF Tx-arrays are commonly constructed using gapped loops. Based on analytical optimization we constructed a 9.4T 8-loop head transceiver array. Both the magnetic and electric coupling were compensated at the same time by overlapping and excellent decoupling was obtained. Tx- and Rx-performance of the array was compared favorably to that of a gaped array.

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日付: 出版: 2016-05-09

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識別子（DOI, ISBNなど）: BibTex参照ID: AvdievichGPH2016

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出版物名: 24th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2016)

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