Improved pediatric MR imaging with compressed sensing.

ABSTRACT:

Purpose

To develop a method that combines parallel imaging and compressed sensing to enable faster and/or higher spatial resolution magnetic resonance (MR) imaging and show its feasibility in a pediatric clinical setting.

Materials and methods

Institutional review board approval was obtained for this HIPAA-compliant study, and informed consent or assent was given by subjects. A pseudorandom k-space undersampling pattern was incorporated into a three-dimensional (3D) gradient-echo sequence; aliasing then has an incoherent noiselike pattern rather than the usual coherent fold-over wrapping pattern. This k-space-sampling pattern was combined with a compressed sensing nonlinear reconstruction method that exploits the assumption of sparsity of medical images to permit reconstruct

SUBMITTER: Vasanawala SS 

PROVIDER: S-EPMC2909438 | biostudies-literature | 2010 Aug

REPOSITORIES: biostudies-literature