Development and evaluation of a multichannel endorectal RF coil for prostate MRI at 7T in combination with an external surface array.

ABSTRACT:

Purpose

To develop and evaluate a sterilizable multichannel endorectal coil (ERC) for use in combination with an external surface array (ESA) for high-resolution anatomical and functional studies of the prostate at 7T.

Materials and methods

A two-loop ERC (ERC-2L) and a microstrip-loop ERC (ERC-ML) were compared at 7T in terms of transmit and receive performance. The best-performing ERC was evaluated alone and in combination with the ESA through 1) simulations on both phantom and an anatomically correct numerical human model to assess B1+ transmit and specific absorption rate (SAR) efficiencies, and 2) phantom experiments to calculate B1+ transmit efficiency and signal-to-noise ratio (SNR). Phantom studies were also performed to look at heating when using the ERC as a transm

SUBMITTER: Erturk MA 

PROVIDER: S-EPMC4865450 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature