Simultaneous high-resolution T₂ -weighted imaging and quantitative T₂ mapping at low magnetic field strengths using a multiple TE and multi-orientation acquisition approach.

ABSTRACT:

Purpose

Low magnetic field systems provide an important opportunity to expand MRI to new and diverse clinical and research study populations. However, a fundamental limitation of low field strength systems is the reduced SNR compared to 1.5 or 3T, necessitating compromises in spatial resolution and imaging time. Most often, images are acquired with anisotropic voxels with low through-plane resolution, which provide acceptable image quality with reasonable scan times, but can impair visualization of subtle pathology.

Methods

Here, we describe a super-resolution approach to reconstruct high-resolution isotropic T₂ -weighted images from a series of low-resolution anisotropic images acquired in orthogonal orientations. Furthermore, acquiring each image with an increme

SUBMITTER: Deoni SCL 

PROVIDER: S-EPMC9322579 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature