Improved ¹ H body imaging at 10.5 T: Validation and VOP-enabled imaging in vivo with a 16-channel transceiver dipole array.

ABSTRACT:

Purpose

To increase the RF coil performance and RF management for body imaging at 10.5 T by validating and evaluating a high-density 16-channel transceiver array, implementing virtual observation points (VOPs), and demonstrating specific absorption rate (SAR) constrained imaging in vivo.

Methods

The inaccuracy of the electromagnetic model of the array was quantified based on B₁ ⁺ and SAR data. Inter-subject variability was estimated using a new approach based on the relative SAR deviation of different RF shims between human body models. The pTx performance of the 16-channel array was assessed in simulation by comparison to a previously demonstrated 10-channel array. In vivo imaging of the prostate was performed demonstrating SAR-constrained static RF sh

SUBMITTER: Schmidt S 

PROVIDER: S-EPMC10850915 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature