Whole-body magnetic resonance imaging in two minutes: cross-sectional real-time coverage of multiple volumes.

ABSTRACT: This work describes a novel technique for rapid and motion-robust whole-body magnetic resonance imaging (MRI). The method employs highly undersampled radial fast low angle shot (FLASH) sequences to cover large volumes by cross-sectional real-time MRI with automatic slice advancement after each frame. The slice shift typically amounts to a fraction of the slice thickness (e.g., 10% to 50%) in order to generate a successive series of partially overlapping sections. Joint reconstructions of these serial images and their respective coil sensitivity maps rely on nonlinear inversion (NLINV) with regularization to the image and sensitivity maps of a preceding frame. The procedure exploits the spatial similarity of neighboring sections. Whole-body scanning is accomplished by measuring multiple vol

SUBMITTER: Voit D 

PROVIDER: S-EPMC10722042 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature