Accelerating T1ρ cartilage imaging using compressed sensing with iterative locally adapted support detection and JSENSE.

ABSTRACT:

Purpose

To accelerate T1ρ quantification in cartilage imaging using combined compressed sensing with iterative locally adaptive support detection and JSENSE.

Methods

To reconstruct T1ρ images from accelerated acquisition at different time of spin-lock (TSLs), we propose an approach to combine an advanced compressed sensing (CS) based reconstruction technique, LAISD (locally adaptive iterative support detection), and an advanced parallel imaging technique, JSENSE. Specifically, the reconstruction process alternates iteratively among local support detection in the domain of principal component analysis, compressed sensing reconstruction of the image sequence, and sensitivity estimation with JSENSE. T1ρ quantification results from accelerated scans using the proposed method are

SUBMITTER: Zhou Y 

PROVIDER: S-EPMC4834045 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature