MRSIGMA: Magnetic Resonance SIGnature MAtching for real-time volumetric imaging.

ABSTRACT:

Purpose

To propose a real-time 3D MRI technique called MR SIGnature MAtching (MRSIGMA) for high-resolution volumetric imaging and motion tracking with very low imaging latency.

Methods

MRSIGMA consists of two steps: (1) offline learning of a database of possible 3D motion states and corresponding motion signature ranges and (2) online matching of new motion signatures acquired in real time with prelearned motion states. Specifically, the offline learning step (non-real-time) reconstructs motion-resolved 4D images representing different motion states and assigns a unique motion range to each state. The online matching step (real-time) acquires motion signatures only and selects one of the prelearned 3D motion states for each newly acquired signature, which generates 3D images

SUBMITTER: Feng L 

PROVIDER: S-EPMC8585549 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature