Improved Decoupling for 13C coil Arrays Using Non-Conventional Matching and Preamplifier Impedance

Juan Diego Sanchez; Daniel Højrup Johansen; Rie Beck Hansen; Esben S.  Hansen; Christoffer Laustsen; Vitaliy Zhurbenko; Jan Henrik Ardenkjær-Larsen

Improved Decoupling for 13C coil Arrays Using Non-Conventional Matching and Preamplifier Impedance

Juan Diego Sanchez, Daniel Højrup Johansen, Rie Beck Hansen, Esben S. Hansen, Christoffer Laustsen, Vitaliy Zhurbenko, Jan Henrik Ardenkjær-Larsen

Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

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Abstract

In this study, we describe a method to obtain improved preamplifier decoupling for receive-only coils. The method relies on the better decoupling obtained when coils are matched to an impedance higher than 50 . Preamplifiers with inductive imaginary impedance and low real impedance, increase the effectiveness of the decoupling. A 2-channel 13C array of 50 mm loop coils show an increase of Q-factor of the coils from 247 to 365. The measured SNR, using two small phantoms, demonstrated a similar improvement.

Original language	English
Publication date	2017
Number of pages	3
Publication status	Published - 2017
Event	ISMRM 25th Annual Meeting & Exhibition - Hawai'i Convention Center, Honolulu, United States Duration: 22 Apr 2017 → 27 Apr 2017

Conference

Conference	ISMRM 25th Annual Meeting & Exhibition
Location	Hawai'i Convention Center
Country	United States
City	Honolulu
Period	22/04/2017 → 27/04/2017

Bibliographical note

http://indexsmart.mirasmart.com/ISMRM2017/PDFfiles/2711.html

Access to Document

Sanchez ISMRM 2017 Abstract v1Final published version, 384 KB

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@conference{a79bc54d24fa463d8c1a46c0bc131840,

title = "Improved Decoupling for 13C coil Arrays Using Non-Conventional Matching and Preamplifier Impedance",

abstract = "In this study, we describe a method to obtain improved preamplifier decoupling for receive-only coils. The method relies on the better decoupling obtained when coils are matched to an impedance higher than 50 . Preamplifiers with inductive imaginary impedance and low real impedance, increase the effectiveness of the decoupling. A 2-channel 13C array of 50 mm loop coils show an increase of Q-factor of the coils from 247 to 365. The measured SNR, using two small phantoms, demonstrated a similar improvement.",

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

note = "http://indexsmart.mirasmart.com/ISMRM2017/PDFfiles/2711.html; ISMRM 25th Annual Meeting & Exhibition, ISMRM 2017 ; Conference date: 22-04-2017 Through 27-04-2017",

year = "2017",

language = "English",

}

Improved Decoupling for 13C coil Arrays Using Non-Conventional Matching and Preamplifier Impedance. / Sanchez, Juan Diego; Johansen, Daniel Højrup; Hansen, Rie Beck; Hansen, Esben S. ; Laustsen, Christoffer; Zhurbenko, Vitaliy ; Ardenkjær-Larsen, Jan Henrik.

2017. Abstract from ISMRM 25th Annual Meeting & Exhibition, Honolulu, United States.

Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

TY - ABST

T1 - Improved Decoupling for 13C coil Arrays Using Non-Conventional Matching and Preamplifier Impedance

AU - Sanchez, Juan Diego

AU - Johansen, Daniel Højrup

AU - Hansen, Rie Beck

AU - Hansen, Esben S.

AU - Laustsen, Christoffer

AU - Zhurbenko, Vitaliy

AU - Ardenkjær-Larsen, Jan Henrik

N1 - http://indexsmart.mirasmart.com/ISMRM2017/PDFfiles/2711.html

PY - 2017

Y1 - 2017

N2 - In this study, we describe a method to obtain improved preamplifier decoupling for receive-only coils. The method relies on the better decoupling obtained when coils are matched to an impedance higher than 50 . Preamplifiers with inductive imaginary impedance and low real impedance, increase the effectiveness of the decoupling. A 2-channel 13C array of 50 mm loop coils show an increase of Q-factor of the coils from 247 to 365. The measured SNR, using two small phantoms, demonstrated a similar improvement.

AB - In this study, we describe a method to obtain improved preamplifier decoupling for receive-only coils. The method relies on the better decoupling obtained when coils are matched to an impedance higher than 50 . Preamplifiers with inductive imaginary impedance and low real impedance, increase the effectiveness of the decoupling. A 2-channel 13C array of 50 mm loop coils show an increase of Q-factor of the coils from 247 to 365. The measured SNR, using two small phantoms, demonstrated a similar improvement.

M3 - Conference abstract for conference

T2 - ISMRM 25th Annual Meeting & Exhibition

Y2 - 22 April 2017 through 27 April 2017

ER -