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 conferenceConference abstract for conferenceResearchpeer-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 languageEnglish
Publication date2017
Number of pages3
Publication statusPublished - 2017
Event ISMRM 25th Annual Meeting & Exhibition - Hawai'i Convention Center, Honolulu, United States
Duration: 22 Apr 201727 Apr 2017

Conference

Conference ISMRM 25th Annual Meeting & Exhibition
LocationHawai'i Convention Center
CountryUnited States
CityHonolulu
Period22/04/201727/04/2017

Bibliographical note

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

Cite this

Sanchez, J. D., Johansen, D. H., Hansen, R. B., Hansen, E. S., Laustsen, C., Zhurbenko, V., & Ardenkjær-Larsen, J. H. (2017). Improved Decoupling for 13C coil Arrays Using Non-Conventional Matching and Preamplifier Impedance. Abstract from ISMRM 25th Annual Meeting & Exhibition, Honolulu, United States.
Sanchez, Juan Diego ; Johansen, Daniel Højrup ; Hansen, Rie Beck ; Hansen, Esben S. ; Laustsen, Christoffer ; Zhurbenko, Vitaliy ; Ardenkjær-Larsen, Jan Henrik. / Improved Decoupling for 13C coil Arrays Using Non-Conventional Matching and Preamplifier Impedance. Abstract from ISMRM 25th Annual Meeting & Exhibition, Honolulu, United States.3 p.
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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",

}

Sanchez, JD, Johansen, DH, Hansen, RB, Hansen, ES, Laustsen, C, Zhurbenko, V & Ardenkjær-Larsen, JH 2017, 'Improved Decoupling for 13C coil Arrays Using Non-Conventional Matching and Preamplifier Impedance' ISMRM 25th Annual Meeting & Exhibition, Honolulu, United States, 22/04/2017 - 27/04/2017, .

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 conferenceConference abstract for conferenceResearchpeer-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

ER -

Sanchez JD, Johansen DH, Hansen RB, Hansen ES, Laustsen C, Zhurbenko V et al. Improved Decoupling for 13C coil Arrays Using Non-Conventional Matching and Preamplifier Impedance. 2017. Abstract from ISMRM 25th Annual Meeting & Exhibition, Honolulu, United States.