Radiofrequency field enhancement with high dielectric constant (HDC) pads in a receive array coil at 3.0T

Qing X. Yang; Sebastian Rupprecht; Wei Luo; Christopher Sica; Zachary Herse; Jianli Wang; Zhipeng Cao; Jeffrey Vesek; Michael T. Lanagan; Giuseppe Carluccio; Yeun Chul Ryu; Christopher M. Collins

doi:10.1002/jmri.23988

Radiofrequency field enhancement with high dielectric constant (HDC) pads in a receive array coil at 3.0T

Qing X. Yang, Sebastian Rupprecht, Wei Luo, Christopher Sica, Zachary Herse, Jianli Wang, Zhipeng Cao, Jeffrey Vesek, Michael T. Lanagan, Giuseppe Carluccio, Yeun Chul Ryu, Christopher M. Collins

Research output: Contribution to journal › Article › peer-review

47 Scopus citations

Abstract

Purpose To investigate the use of a new high-dielectric constant (HDC) material for improving SNR and transmission efficiency for clinical MRI applications at 3 Tesla (T) with cervical spine imaging. Materials and Methods Human subjects were imaged using a commercial cervical spine receive array coil on a clinical system with and without pads containing Barium Titanate beads in deuterium water placed around the neck. Numerical electromagnetic field simulations of the same configuration were also performed. Results Experimental and simulated maps of transmit and receive fields showed greater efficiency for imaging the cervical spine when the pads were present. Experimental measurements showed a significant improvement in SNR with the pads present and an average input power reduction of 46%. Conclusion Use of HDC material can enhance SNR and transmission efficiency for clinical imaging of the cervical spine at 3.0T. © 2012 Wiley Periodicals, Inc.

Original language	English (US)
Pages (from-to)	435-440
Number of pages	6
Journal	Journal of Magnetic Resonance Imaging
Volume	38
Issue number	2
DOIs	https://doi.org/10.1002/jmri.23988
State	Published - Aug 2013

All Science Journal Classification (ASJC) codes

Radiology Nuclear Medicine and imaging

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10.1002/jmri.23988

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title = "Radiofrequency field enhancement with high dielectric constant (HDC) pads in a receive array coil at 3.0T",

abstract = "Purpose To investigate the use of a new high-dielectric constant (HDC) material for improving SNR and transmission efficiency for clinical MRI applications at 3 Tesla (T) with cervical spine imaging. Materials and Methods Human subjects were imaged using a commercial cervical spine receive array coil on a clinical system with and without pads containing Barium Titanate beads in deuterium water placed around the neck. Numerical electromagnetic field simulations of the same configuration were also performed. Results Experimental and simulated maps of transmit and receive fields showed greater efficiency for imaging the cervical spine when the pads were present. Experimental measurements showed a significant improvement in SNR with the pads present and an average input power reduction of 46%. Conclusion Use of HDC material can enhance SNR and transmission efficiency for clinical imaging of the cervical spine at 3.0T. {\textcopyright} 2012 Wiley Periodicals, Inc.",

author = "Yang, {Qing X.} and Sebastian Rupprecht and Wei Luo and Christopher Sica and Zachary Herse and Jianli Wang and Zhipeng Cao and Jeffrey Vesek and Lanagan, {Michael T.} and Giuseppe Carluccio and Ryu, {Yeun Chul} and Collins, {Christopher M.}",

year = "2013",

month = aug,

doi = "10.1002/jmri.23988",

language = "English (US)",

volume = "38",

pages = "435--440",

journal = "Journal of Magnetic Resonance Imaging",

issn = "1053-1807",

publisher = "John Wiley and Sons Inc.",

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TY - JOUR

T1 - Radiofrequency field enhancement with high dielectric constant (HDC) pads in a receive array coil at 3.0T

AU - Yang, Qing X.

AU - Rupprecht, Sebastian

AU - Luo, Wei

AU - Sica, Christopher

AU - Herse, Zachary

AU - Wang, Jianli

AU - Cao, Zhipeng

AU - Vesek, Jeffrey

AU - Lanagan, Michael T.

AU - Carluccio, Giuseppe

AU - Ryu, Yeun Chul

AU - Collins, Christopher M.

PY - 2013/8

Y1 - 2013/8

N2 - Purpose To investigate the use of a new high-dielectric constant (HDC) material for improving SNR and transmission efficiency for clinical MRI applications at 3 Tesla (T) with cervical spine imaging. Materials and Methods Human subjects were imaged using a commercial cervical spine receive array coil on a clinical system with and without pads containing Barium Titanate beads in deuterium water placed around the neck. Numerical electromagnetic field simulations of the same configuration were also performed. Results Experimental and simulated maps of transmit and receive fields showed greater efficiency for imaging the cervical spine when the pads were present. Experimental measurements showed a significant improvement in SNR with the pads present and an average input power reduction of 46%. Conclusion Use of HDC material can enhance SNR and transmission efficiency for clinical imaging of the cervical spine at 3.0T. © 2012 Wiley Periodicals, Inc.

AB - Purpose To investigate the use of a new high-dielectric constant (HDC) material for improving SNR and transmission efficiency for clinical MRI applications at 3 Tesla (T) with cervical spine imaging. Materials and Methods Human subjects were imaged using a commercial cervical spine receive array coil on a clinical system with and without pads containing Barium Titanate beads in deuterium water placed around the neck. Numerical electromagnetic field simulations of the same configuration were also performed. Results Experimental and simulated maps of transmit and receive fields showed greater efficiency for imaging the cervical spine when the pads were present. Experimental measurements showed a significant improvement in SNR with the pads present and an average input power reduction of 46%. Conclusion Use of HDC material can enhance SNR and transmission efficiency for clinical imaging of the cervical spine at 3.0T. © 2012 Wiley Periodicals, Inc.

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Radiofrequency field enhancement with high dielectric constant (HDC) pads in a receive array coil at 3.0T

Abstract

All Science Journal Classification (ASJC) codes

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