A 128-channel receive array with enhanced signal-to-noise ratio performance for 10.5T brain imaging.

ABSTRACT:

Purpose

To develop and characterize a 128-channel head array for brain imaging at 10.5 T, evaluate signal-to-noise ratio (SNR) relative to ultimate intrinsic SNR (uiSNR) and lower field strengths, and demonstrate human brain anatomical and functional imaging with this unique magnetic field and high-channel-count array.

Methods

The coil consists of a 16-channel self-decoupled loop transmit/receive (16Tx/Rx) array with a 112-loop receive-only (Rx) insert. Interactions between the 16Tx/Rx array and the 112Rx insert were mitigated using coaxial cable traps placed every 1/16 of a wavelength on each feed cable, locating most preamplifier boards outside the transmitter field, and miniaturizing those placed directly on individual coils.

Results

The effect of the 112Rx insert

SUBMITTER: Lagore RL 

PROVIDER: S-EPMC11971493 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature