Reverse polarized inductive coupling to transmit and receive radiofrequency coil arrays
Author
Celik, H.
Atalar, Ergin
Date
2011-06-07Source Title
Magnetic Resonance in Medicine
Print ISSN
0740-3194
Publisher
Wiley
Volume
67
Issue
2
Pages
446 - 456
Language
English
Type
ArticleItem Usage Stats
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Abstract
In this study, the reverse polarization method is implemented using transmit and receive arrays to improve the visibility of the interventional devices. Linearly polarized signal sources-inductively and receptively coupled radiofrequency coils-are used in the experimental setups to demonstrate the ability of the method to separate these sources from a forward polarized anatomy signal. Two different applications of the reverse polarization method are presented here: (a) catheter tracking and (b) fiducial marker visualization, in both of which transmit and receive arrays are used. The performance of the reverse polarization method was further tested with phantom and volunteer studies, and the results proved the feasibility of this method with transmit and receive arrays.
Keywords
Fiducial markerInductive and receptive coupling
Interventional device tracking
Interventional MRI
Phased array coils
Reverse polarization
Transmit array system