Polymer thick film technology for improved simultaneous dEEG/MRI recording: Safety and MRI data quality.

ABSTRACT:

Purpose

To develop a 256-channel dense-array electroencephalography (dEEG) sensor net (the Ink-Net) using high-resistance polymer thick film (PTF) technology to improve safety and data quality during simultaneous dEEG/MRI.

Methods

Heating safety was assessed with temperature measurements in an anthropomorphic head phantom during a 30-min, induced-heating scan at 7T. MRI quality assessment used B1 field mapping and functional MRI (fMRI) retinotopic scans in three humans at 3T. Performance of the 256-channel PTF Ink-Net was compared with a 256-channel MR-conditional copper-wired electroencephalography (EEG) net and to scans with no sensor net. A visual evoked potential paradigm assessed EEG quality within and outside the 3T scanner.

Results

Phantom temperature measureme

SUBMITTER: Poulsen C 

PROVIDER: S-EPMC4985508 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature