Meeting Banner
Abstract #2711

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

Juan Diego Sánchez Heredia1, Daniel Højrup Johansen1, Rie Beck Hansen1, Esben Søvsø Szocska Hansen2, Christoffer Laustsen2, Vitaliy Zhurbenko1, and Jan Henrik Ardenkjær-Larsen1

1Department of Electrical Engineering, Technical University of Denmark, Kgs. Lyngby, Denmark, 2Department of Clinical Medicine, Aarhus University, Aarhus, Denmark

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 Ω. Preamplifiers with inductive imaginary impedance and low real impedance, increases 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.

This abstract and the presentation materials are available to members only; a login is required.

Join Here