Stacked magnetic resonators for MRI RF coils decoupling

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• 作者：Elodie Georget^a ; ^{elodie.georget@cea.fr} ; Michel Luong^b ; ^{michel.luong@cea.fr} ; Alexandre Vignaud^a ; ^{alexandre.vignaud@cea.fr} ; Eric Giacomini^a ; ^{eric.giacomini@cea.fr} ; Edouard Chazel^a ; ^{edouard.chazel@cea.fr} ; Guillaume Ferrand^b ; ^{guillaume.ferrand@cea.fr} ; Alexis Amadon^a ; ^{alexis.amadon@cea.fr} ; Franck Mauconduit^c ; ^{franck.mauconduit@siemens.com} ; Stefan Enoch^d ; ^{stefan.enoch@fresnel.fr} ; Gé ; rard Tayeb^d ; ^{gerard.tayeb@fresnel.fr} ; Nicolas Bonod^d ; ^{nicolas.bonod@fresnel.fr} ; Cyril Poupon^a ; ^{cyril.poupon@cea.fr} ; Redha Abdeddaim^d ; ^{redha.abdeddaim@fresnel.fr}
• 关键词：High-field RF coils ; Linear resonator ; Phased array coil ; Passive decoupling ; Metamaterial
• 刊名：Journal of Magnetic Resonance
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：275
• 期：Complete
• 页码：11-18
• 全文大小：2102 K
• 卷排序：275

文摘

A passive decoupling structure between two adjacent linear resonators is proposed for 7 T MRI. The decoupling structure significantly reduces by more than 10 dB the coupling between adjacent linear resonators. The structure is tested in a 7 T MRI and the acquired field maps are compared to simulation results. The linear resonators with the structure behave like single linear resonators.