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  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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Datensatz-Permalink: https://hdl.handle.net/21.11116/0000-0000-7CE6-2 Versions-Permalink: https://hdl.handle.net/21.11116/0000-0000-E985-3
Genre: Meeting Abstract

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 Urheber:
Avdievich, NI1, 2, 3, Autor           
Giapitzakis, IA1, 2, 3, Autor           
Pfrommer, A1, 3, Autor           
Henning, A1, 2, 3, Autor           
Affiliations:
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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 Zusammenfassung: 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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 Datum: 2016-05-09
 Publikationsstatus: Erschienen
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 Identifikatoren: BibTex Citekey: AvdievichGPH2016
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Titel: 24th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2016)
Veranstaltungsort: Singapore
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Titel: 24th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2016)
Genre der Quelle: Konferenzband
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Seiten: - Band / Heft: - Artikelnummer: 0169 Start- / Endseite: - Identifikator: -