Bilateral orthogonality generative acquisitions method for homogeneous T 2 * images using parallel transmission at 7 T.

ABSTRACT:

Purpose

The novel bilateral orthogonality generative acquisitions method has been developed for homogeneous T2*$$ {\mathrm{T}}_2^{\ast } $$ images without the effects of transmit field inhomogeneity using a parallel-transmission (pTx) system at 7 T.

Theory and methods

A new method has been introduced using four low-angle gradient-echo (GRE) acquisitions to obtain homogeneous T2*$$ {\mathrm{T}}_2^{\ast } $$ contrast by removing the effects of transmit field inhomogeneity in the pTx system. First, two input images are obtained in circularly polarized mode and another mode in which the first transmit channel or channel group have an additional transmit phase of π. The last two acquisitions are single-channel acquisitions for a dual-channel system or single-channel group acquisi

SUBMITTER: Boga C 

PROVIDER: S-EPMC11680731 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature