Feasibility of high spatiotemporal resolution for an abbreviated 3D radial breast MRI protocol.

ABSTRACT:

Purpose

To develop a volumetric imaging technique with 0.8-mm isotropic resolution and 10-s/volume rate to detect and analyze breast lesions in a bilateral, dynamic, contrast-enhanced MRI exam.

Methods

A local low-rank temporal reconstruction approach that also uses parallel imaging and spatial compressed sensing was designed to create rapid volumetric frame rates during a contrast-enhanced breast exam (vastly undersampled isotropic projection [VIPR] spatial compressed sensing with temporal local low-rank [STELLR]). The dynamic-enhanced data are subtracted in k-space from static mask data to increase sparsity for the local low-rank approach to maximize temporal resolution. A T₁ -weighted 3D radial trajectory (VIPR iterative decomposition with echo asymmetry and le

SUBMITTER: Jimenez JE 

PROVIDER: S-EPMC6721961 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature