A gradient optimization toolbox for general purpose time-optimal MRI gradient waveform design.

ABSTRACT:

Purpose

To introduce and demonstrate a software library for time-optimal gradient waveform optimization with a wide range of applications. The software enables direct on-the-fly gradient waveform design on the scanner hardware for multiple vendors.

Methods

The open-source gradient optimization (GrOpt) toolbox was implemented in C with both Matlab and Python wrappers. The toolbox enables gradient waveforms to be generated based on a set of constraints that define the features and encodings for a given acquisition. The GrOpt optimization routine is based on the alternating direction method of multipliers (ADMM). Additional constraints enable error corrections to be added, or patient comfort and safety to be adressed. A range of applications and compute speed metrics are analyz

SUBMITTER: Loecher M 

PROVIDER: S-EPMC7540314 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature