Ultrafast 3D Bloch-Siegert B 1 + -mapping using variational modeling.

ABSTRACT:

Purpose

Highly accelerated B 1 + -mapping based on the Bloch-Siegert shift to allow 3D acquisitions even within a brief period of a single breath-hold.

Theory and methods

The B 1 + dependent Bloch-Siegert phase shift is measured within a highly subsampled 3D-volume and reconstructed using a two-step variational approach, exploiting the different spatial distribution of morphology and B 1 +</

SUBMITTER: Lesch A 

PROVIDER: S-EPMC6491998 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature