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

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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
    Country/TerritoryUnited States
    CityHonolulu
    Period22/04/201727/04/2017

    Bibliographical note

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

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