A 31-channel MR brain array coil compatible with positron emission tomography.

ABSTRACT:

Purpose

Simultaneous acquisition of MR and positron emission tomography (PET) images requires the placement of the MR detection coil inside the PET detector ring where it absorbs and scatters photons. This constraint is the principal barrier to achieving optimum sensitivity on each modality. Here, we present a 31-channel PET-compatible brain array coil with reduced attenuation but improved MR sensitivity.

Methods

A series of component tests were performed to identify tradeoffs between PET and MR performance. Aspects studied include the remote positioning of preamplifiers, coax size, coil trace size/material, and plastic housing. We then maximized PET performance at minimal cost to MR sensitivity. The coil was evaluated for MR performance (signal to noise ratio [SNR], g-facto

SUBMITTER: Sander CY 

PROVIDER: S-EPMC4500638 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature