New ferroelectric ceramics for transmit efficiency enhancement at 1.5 Tesla

Irena Zivkovic; Alexey P. Slobozhanyuk; Elisaveta Nenasheva; Andrew Webb

New ferroelectric ceramics for transmit efficiency enhancement at 1.5 Tesla

Irena Zivkovic
, Alexey P. Slobozhanyuk
, Elisaveta Nenasheva
, Andrew Webb

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

The presence of medical implants often results in MR scans with low SAR being prescribed, which reduces the diagnostic quality of the images. This work shows that one can achieve an increase in local transmit efficiency and a corresponding decrease in SAR at 1.5 Tesla using new ferroelectric materials (based on BaTiO3 with ZrO2 and CeO2-additives) with relative permittivities higher than 4500. Simulations and phantom/in vivo experiments show an increased local transmit efficiency of ~50% from the body transmit coil, with a corresponding increase in SNR for a given value of SAR.

Original language	English
Title of host publication	Joint Annual Meeting ISMRM-ESMRMB 2018
Place of Publication	Paris, France
Publication status	Published - 2018
Externally published	Yes
Event	Joint Annual Meeting ISMRM-ESMRMB 2018 - Paris, France Duration: 16 Jun 2018 → 21 Jun 2018

Conference

Conference	Joint Annual Meeting ISMRM-ESMRMB 2018
Country/Territory	France
City	Paris
Period	16/06/18 → 21/06/18

Cite this

@inproceedings{ec95df85e1d845009bd7c286852f66a8,

title = "New ferroelectric ceramics for transmit efficiency enhancement at 1.5 Tesla",

abstract = "The presence of medical implants often results in MR scans with low SAR being prescribed, which reduces the diagnostic quality of the images. This work shows that one can achieve an increase in local transmit efficiency and a corresponding decrease in SAR at 1.5 Tesla using new ferroelectric materials (based on BaTiO3 with ZrO2 and CeO2-additives) with relative permittivities higher than 4500. Simulations and phantom/in vivo experiments show an increased local transmit efficiency of \textasciitilde{}50\% from the body transmit coil, with a corresponding increase in SNR for a given value of SAR. ",

author = "Irena Zivkovic and Slobozhanyuk, \{Alexey P.\} and Elisaveta Nenasheva and Andrew Webb",

year = "2018",

language = "English",

booktitle = "Joint Annual Meeting ISMRM-ESMRMB 2018",

note = "Joint Annual Meeting ISMRM-ESMRMB 2018 ; Conference date: 16-06-2018 Through 21-06-2018",

}

TY - GEN

T1 - New ferroelectric ceramics for transmit efficiency enhancement at 1.5 Tesla

AU - Zivkovic, Irena

AU - Slobozhanyuk, Alexey P.

AU - Nenasheva, Elisaveta

AU - Webb, Andrew

PY - 2018

Y1 - 2018

N2 - The presence of medical implants often results in MR scans with low SAR being prescribed, which reduces the diagnostic quality of the images. This work shows that one can achieve an increase in local transmit efficiency and a corresponding decrease in SAR at 1.5 Tesla using new ferroelectric materials (based on BaTiO3 with ZrO2 and CeO2-additives) with relative permittivities higher than 4500. Simulations and phantom/in vivo experiments show an increased local transmit efficiency of ~50% from the body transmit coil, with a corresponding increase in SNR for a given value of SAR.

AB - The presence of medical implants often results in MR scans with low SAR being prescribed, which reduces the diagnostic quality of the images. This work shows that one can achieve an increase in local transmit efficiency and a corresponding decrease in SAR at 1.5 Tesla using new ferroelectric materials (based on BaTiO3 with ZrO2 and CeO2-additives) with relative permittivities higher than 4500. Simulations and phantom/in vivo experiments show an increased local transmit efficiency of ~50% from the body transmit coil, with a corresponding increase in SNR for a given value of SAR.

M3 - Conference contribution

BT - Joint Annual Meeting ISMRM-ESMRMB 2018

CY - Paris, France

T2 - Joint Annual Meeting ISMRM-ESMRMB 2018

Y2 - 16 June 2018 through 21 June 2018

ER -

New ferroelectric ceramics for transmit efficiency enhancement at 1.5 Tesla

Abstract

Conference

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