Dielectric enhanced dipoles for MRI - Approaching the ideal current pattern

W.M.. Brink; J. Paska; J. Dai; J.H.F. van Gemert; G. Chen; G.C. Wiggins; R.F. Remis; C.M. Collins; A.G. Webb

doi:10.1109/ICEAA.2017.8065489

Dielectric enhanced dipoles for MRI - Approaching the ideal current pattern

W.M.. Brink, J. Paska, J. Dai, J.H.F. van Gemert, G. Chen, G.C. Wiggins, R.F. Remis, C.M. Collins, A.G. Webb

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

4 Citations (Scopus)

Abstract

In this work we present a systematic evaluation of the potential of combining dielectric materials with an array of electric dipoles for MRI. Design parameters include the permittivity and length of a dielectric sleeve, as well as the dipole length and position of the tuning inductors. Results show that the combined approach improves transmit efficiency and SNR by ~10 to 15 % compared to an optimized dipole array without dielectric sleeve. The resulting induced current densities reflect an improved correspondence with the ideal current pattern, which explains the gains in performance.

Original language	English
Title of host publication	Proceedings of the 2017 International Conference on Electromagnetics in Advanced Applications (ICEAA '17)
Place of Publication	Piscataway, NJ
Publisher	IEEE
Pages	1220-1223
Number of pages	4
ISBN (Electronic)	978-1-5090-4451-1
DOIs	https://doi.org/10.1109/ICEAA.2017.8065489
Publication status	Published - 2017
Event	ICEAA 2017: 19th International Conference on Electromagnetics in Advanced Applications - Verona, Italy Duration: 11 Sept 2017 → 15 Sept 2017 Conference number: 19

Conference

Conference	ICEAA 2017
Abbreviated title	ICEAA '17
Country/Territory	Italy
City	Verona
Period	11/09/17 → 15/09/17

Keywords

Dielectrics
Signal to noise ratio
Inductors
Radio frequency
Sensitivity
Permittivity

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10.1109/ICEAA.2017.8065489

Cite this

Brink, W. M., Paska, J., Dai, J., van Gemert, J. H. F., Chen, G., Wiggins, G. C., Remis, R. F., Collins, C. M., & Webb, A. G. (2017). Dielectric enhanced dipoles for MRI - Approaching the ideal current pattern. In Proceedings of the 2017 International Conference on Electromagnetics in Advanced Applications (ICEAA '17) (pp. 1220-1223). IEEE. https://doi.org/10.1109/ICEAA.2017.8065489

@inproceedings{f7bcff3c733943d2a99e3a9987500dbf,

title = "Dielectric enhanced dipoles for MRI - Approaching the ideal current pattern",

abstract = "In this work we present a systematic evaluation of the potential of combining dielectric materials with an array of electric dipoles for MRI. Design parameters include the permittivity and length of a dielectric sleeve, as well as the dipole length and position of the tuning inductors. Results show that the combined approach improves transmit efficiency and SNR by ~10 to 15 % compared to an optimized dipole array without dielectric sleeve. The resulting induced current densities reflect an improved correspondence with the ideal current pattern, which explains the gains in performance.",

keywords = "Dielectrics, Signal to noise ratio, Inductors, Radio frequency, Sensitivity, Permittivity",

author = "W.M.. Brink and J. Paska and J. Dai and {van Gemert}, J.H.F. and G. Chen and G.C. Wiggins and R.F. Remis and C.M. Collins and A.G. Webb",

year = "2017",

doi = "10.1109/ICEAA.2017.8065489",

language = "English",

pages = "1220--1223",

booktitle = "Proceedings of the 2017 International Conference on Electromagnetics in Advanced Applications (ICEAA '17)",

publisher = "IEEE",

address = "United States",

note = "ICEAA 2017 : 19th International Conference on Electromagnetics in Advanced Applications, ICEAA '17 ; Conference date: 11-09-2017 Through 15-09-2017",

}

Brink, WM, Paska, J, Dai, J, van Gemert, JHF, Chen, G, Wiggins, GC, Remis, RF, Collins, CM & Webb, AG 2017, Dielectric enhanced dipoles for MRI - Approaching the ideal current pattern. in Proceedings of the 2017 International Conference on Electromagnetics in Advanced Applications (ICEAA '17). IEEE, Piscataway, NJ, pp. 1220-1223, ICEAA 2017, Verona, Italy, 11/09/17. https://doi.org/10.1109/ICEAA.2017.8065489

Dielectric enhanced dipoles for MRI - Approaching the ideal current pattern. / Brink, W.M..; Paska, J.; Dai, J. et al.
Proceedings of the 2017 International Conference on Electromagnetics in Advanced Applications (ICEAA '17). Piscataway, NJ: IEEE, 2017. p. 1220-1223.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Dielectric enhanced dipoles for MRI - Approaching the ideal current pattern

AU - Brink, W.M..

AU - Paska, J.

AU - Dai, J.

AU - van Gemert, J.H.F.

AU - Chen, G.

AU - Wiggins, G.C.

AU - Remis, R.F.

AU - Collins, C.M.

AU - Webb, A.G.

N1 - Conference code: 19

PY - 2017

Y1 - 2017

N2 - In this work we present a systematic evaluation of the potential of combining dielectric materials with an array of electric dipoles for MRI. Design parameters include the permittivity and length of a dielectric sleeve, as well as the dipole length and position of the tuning inductors. Results show that the combined approach improves transmit efficiency and SNR by ~10 to 15 % compared to an optimized dipole array without dielectric sleeve. The resulting induced current densities reflect an improved correspondence with the ideal current pattern, which explains the gains in performance.

AB - In this work we present a systematic evaluation of the potential of combining dielectric materials with an array of electric dipoles for MRI. Design parameters include the permittivity and length of a dielectric sleeve, as well as the dipole length and position of the tuning inductors. Results show that the combined approach improves transmit efficiency and SNR by ~10 to 15 % compared to an optimized dipole array without dielectric sleeve. The resulting induced current densities reflect an improved correspondence with the ideal current pattern, which explains the gains in performance.

KW - Dielectrics

KW - Signal to noise ratio

KW - Inductors

KW - Radio frequency

KW - Sensitivity

KW - Permittivity

U2 - 10.1109/ICEAA.2017.8065489

DO - 10.1109/ICEAA.2017.8065489

M3 - Conference contribution

SP - 1220

EP - 1223

BT - Proceedings of the 2017 International Conference on Electromagnetics in Advanced Applications (ICEAA '17)

PB - IEEE

CY - Piscataway, NJ

T2 - ICEAA 2017

Y2 - 11 September 2017 through 15 September 2017

ER -

Dielectric enhanced dipoles for MRI - Approaching the ideal current pattern

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Keywords

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