A Robust Cryogenic RF Coil (88K) for In-vivo Hyperpolarized 13C MRI of Rats

Juan Diego Sanchez; Rafael Antonio Baron; Esben S. Szocska  Hansen; Daniel Højrup Johansen; Vitaliy Zhurbenko; Christoffer Laustsen; Jan Henrik Ardenkjær-Larsen

A Robust Cryogenic RF Coil (88K) for In-vivo Hyperpolarized ¹³C MRI of Rats

Juan Diego Sanchez, Rafael Antonio Baron, Esben S. Szocska Hansen, Daniel Højrup Johansen, Vitaliy Zhurbenko, Christoffer Laustsen, Jan Henrik Ardenkjær-Larsen

Aarhus University

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Abstract

We report the performance of a cryogenic RF receive-only coil for ¹³C imaging of small animals. It is experimentally demonstrated 2-fold SNR improvement in comparison to a room temperature coil in immediate vicinity of the sample. The self-developed cryostat employed for coil cooling shows thermal stability within 5 h of use for 6 L of LN₂ , which can be extended up to 12 h if more LN is added. The Q_88K /Q_290K ratio of
the unloaded coil is 550/285

Original language	English
Publication date	2019
Number of pages	2
Publication status	Published - 2019
Event	ISMRM 27th Annual Meeting & Exhibition - Palais des congrès de Montréal, Montréal, Canada Duration: 11 May 2019 → 16 May 2019 http://www.ismrm.org/19m/

Conference

Conference	ISMRM 27th Annual Meeting & Exhibition
Location	Palais des congrès de Montréal
Country/Territory	Canada
City	Montréal
Period	11/05/2019 → 16/05/2019
Internet address	http://www.ismrm.org/19m/

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ISMRM2019 0434Final published version, 218 KB

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title = "A Robust Cryogenic RF Coil (88K) for In-vivo Hyperpolarized 13C MRI of Rats",

abstract = "We report the performance of a cryogenic RF receive-only coil for 13C imaging of small animals. It is experimentally demonstrated 2-fold SNR improvement in comparison to a room temperature coil in immediate vicinity of the sample. The self-developed cryostat employed for coil cooling shows thermal stability within 5 h of use for 6 L of LN2 , which can be extended up to 12 h if more LN is added. The Q88K /Q290K ratio ofthe unloaded coil is 550/285",

author = "Sanchez, {Juan Diego} and Baron, {Rafael Antonio} and Hansen, {Esben S. Szocska} and Johansen, {Daniel H{\o}jrup} and Vitaliy Zhurbenko and Christoffer Laustsen and Ardenkj{\ae}r-Larsen, {Jan Henrik}",

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T1 - A Robust Cryogenic RF Coil (88K) for In-vivo Hyperpolarized 13C MRI of Rats

AU - Sanchez, Juan Diego

AU - Baron, Rafael Antonio

AU - Hansen, Esben S. Szocska

AU - Johansen, Daniel Højrup

AU - Zhurbenko, Vitaliy

AU - Laustsen, Christoffer

AU - Ardenkjær-Larsen, Jan Henrik

PY - 2019

Y1 - 2019

N2 - We report the performance of a cryogenic RF receive-only coil for 13C imaging of small animals. It is experimentally demonstrated 2-fold SNR improvement in comparison to a room temperature coil in immediate vicinity of the sample. The self-developed cryostat employed for coil cooling shows thermal stability within 5 h of use for 6 L of LN2 , which can be extended up to 12 h if more LN is added. The Q88K /Q290K ratio ofthe unloaded coil is 550/285

AB - We report the performance of a cryogenic RF receive-only coil for 13C imaging of small animals. It is experimentally demonstrated 2-fold SNR improvement in comparison to a room temperature coil in immediate vicinity of the sample. The self-developed cryostat employed for coil cooling shows thermal stability within 5 h of use for 6 L of LN2 , which can be extended up to 12 h if more LN is added. The Q88K /Q290K ratio ofthe unloaded coil is 550/285

M3 - Conference abstract for conference

T2 - ISMRM 27th Annual Meeting & Exhibition

Y2 - 11 May 2019 through 16 May 2019

ER -