Calibrated Coil Combination for Fixed-Geometry, Low-Frequency Coils with Application to Hyperpolarized 13C Measurements

Juan Diego Sánchez; Rie Beck Hansen; Rafael Antonio Baron; Esben S. Szocska Hansen; Daniel Højrup Johansen; Vitaliy Zhurbenko; Christoffer Laustsen; Lars G. Hanson; Jan Henrik Ardenkjær-Larsen

Calibrated Coil Combination for Fixed-Geometry, Low-Frequency Coils with Application to Hyperpolarized 13C Measurements

Juan Diego Sánchez, Rie Beck Hansen, Rafael Antonio Baron, Esben S. Szocska Hansen, Daniel Højrup Johansen, Vitaliy Zhurbenko, Christoffer Laustsen, Lars G. Hanson, Jan Henrik Ardenkjær-Larsen

Abstract

We explore a new design approach for low frequency RF coils, where a transmit and receive array are built together in a totally rigid frame, and therefore their B and B distributions can be accurately mapped and used as prior information for SNR-optimal combination of signals from different coil elements. Using this principle, a coil is designed for C MRS of a pig at 3T (32.13 MHz). We show that at this frequency, the effect of sample loading is minimal, and the prior information obtained in phantomsbenefits in-vivo experiments. This one-time calibration allows for optimal combination of coil signals, which is also expected to improve parallel imaging performance.

Originalsprog	Engelsk
Publikationsdato	2019
Antal sider	3
Status	Udgivet - 2019
Begivenhed	ISMRM 27th Annual Meeting & Exhibition - Montréal, Canada Varighed: 11 maj 2019 → 16 maj 2019 https://www.ismrm.org/19m/

Konference

Konference	ISMRM 27th Annual Meeting & Exhibition
Land/Område	Canada
By	Montréal
Periode	11/05/2019 → 16/05/2019
Internetadresse	https://www.ismrm.org/19m/

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https://orbit.dtu.dk/en/publications/calibrated-coil-combination-for-fixed-geometry-low-frequency-coil

Citationsformater

Sánchez, J. D., Hansen, R. B., Baron, R. A., Hansen, E. S. S., Johansen, D. H., Zhurbenko, V., Laustsen, C., Hanson, L. G., & Ardenkjær-Larsen, J. H. (2019). Calibrated Coil Combination for Fixed-Geometry, Low-Frequency Coils with Application to Hyperpolarized 13C Measurements. Abstract fra ISMRM 27th Annual Meeting & Exhibition, Montréal, Quebec, Canada. https://orbit.dtu.dk/en/publications/calibrated-coil-combination-for-fixed-geometry-low-frequency-coil

Calibrated Coil Combination for Fixed-Geometry, Low-Frequency Coils with Application to Hyperpolarized 13C Measurements. / Sánchez, Juan Diego; Hansen, Rie Beck; Baron, Rafael Antonio et al.
2019. Abstract fra ISMRM 27th Annual Meeting & Exhibition, Montréal, Quebec, Canada.

Publikation: Konferencebidrag › Konferenceabstrakt til konference › Forskning › peer review

Sánchez, JD, Hansen, RB, Baron, RA, Hansen, ESS, Johansen, DH, Zhurbenko, V, Laustsen, C, Hanson, LG & Ardenkjær-Larsen, JH 2019, 'Calibrated Coil Combination for Fixed-Geometry, Low-Frequency Coils with Application to Hyperpolarized 13C Measurements', ISMRM 27th Annual Meeting & Exhibition, Montréal, Canada, 11/05/2019 - 16/05/2019. <https://orbit.dtu.dk/en/publications/calibrated-coil-combination-for-fixed-geometry-low-frequency-coil>

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title = "Calibrated Coil Combination for Fixed-Geometry, Low-Frequency Coils with Application to Hyperpolarized 13C Measurements",

abstract = "We explore a new design approach for low frequency RF coils, where a transmit and receive array are built together in a totally rigid frame, and therefore their B and B distributions can be accurately mapped and used as prior information for SNR-optimal combination of signals from different coil elements. Using this principle, a coil is designed for C MRS of a pig at 3T (32.13 MHz). We show that at this frequency, the effect of sample loading is minimal, and the prior information obtained in phantomsbenefits in-vivo experiments. This one-time calibration allows for optimal combination of coil signals, which is also expected to improve parallel imaging performance.",

author = "S{\'a}nchez, {Juan Diego} and Hansen, {Rie Beck} and Baron, {Rafael Antonio} and Hansen, {Esben S. Szocska} and Johansen, {Daniel H{\o}jrup} and Vitaliy Zhurbenko and Christoffer Laustsen and Hanson, {Lars G.} and Ardenkj{\ae}r-Larsen, {Jan Henrik}",

note = "ISMRM 27th Annual Meeting & Exhibition ; Conference date: 11-05-2019 Through 16-05-2019; ISMRM 27th Annual Meeting & Exhibition ; Conference date: 11-05-2019 Through 16-05-2019",

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TY - ABST

T1 - Calibrated Coil Combination for Fixed-Geometry, Low-Frequency Coils with Application to Hyperpolarized 13C Measurements

AU - Sánchez, Juan Diego

AU - Hansen, Rie Beck

AU - Baron, Rafael Antonio

AU - Hansen, Esben S. Szocska

AU - Johansen, Daniel Højrup

AU - Zhurbenko, Vitaliy

AU - Laustsen, Christoffer

AU - Hanson, Lars G.

AU - Ardenkjær-Larsen, Jan Henrik

N1 - ISMRM 27th Annual Meeting & Exhibition ; Conference date: 11-05-2019 Through 16-05-2019

PY - 2019

Y1 - 2019

N2 - We explore a new design approach for low frequency RF coils, where a transmit and receive array are built together in a totally rigid frame, and therefore their B and B distributions can be accurately mapped and used as prior information for SNR-optimal combination of signals from different coil elements. Using this principle, a coil is designed for C MRS of a pig at 3T (32.13 MHz). We show that at this frequency, the effect of sample loading is minimal, and the prior information obtained in phantomsbenefits in-vivo experiments. This one-time calibration allows for optimal combination of coil signals, which is also expected to improve parallel imaging performance.

AB - We explore a new design approach for low frequency RF coils, where a transmit and receive array are built together in a totally rigid frame, and therefore their B and B distributions can be accurately mapped and used as prior information for SNR-optimal combination of signals from different coil elements. Using this principle, a coil is designed for C MRS of a pig at 3T (32.13 MHz). We show that at this frequency, the effect of sample loading is minimal, and the prior information obtained in phantomsbenefits in-vivo experiments. This one-time calibration allows for optimal combination of coil signals, which is also expected to improve parallel imaging performance.

M3 - Conference abstract for conference

T2 - ISMRM 27th Annual Meeting & Exhibition

Y2 - 11 May 2019 through 16 May 2019

ER -

Calibrated Coil Combination for Fixed-Geometry, Low-Frequency Coils with Application to Hyperpolarized 13C Measurements

Abstract

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