An accelerated PETALUTE MRI sequence for in vivo quantification of sodium content in human articular cartilage at 3T.

ABSTRACT:

Objective

In this work, we evaluate the sodium magnetic resonance imaging (MRI) capabilities of a three-dimensional (3D) dual-echo ultrashort echo time (UTE) sequence with a novel rosette petal trajectory (PETALUTE), in comparison to the 3D density-adapted (DA) radial spokes UTE sequence in human articular cartilage in the knee.

Materials and methods

We scanned five healthy subjects using a 3D dual-echo PETALUTE acquisition and two comparable implementations of 3D DA-radial spokes acquisitions, one matching the number of k-space projections (Radial - Matched Spokes) and the other matching the total number of samples (Radial - Matched Samples) acquired in k-space.

Results

The PETALUTE acquisition enabled equivalent sodium quantification in articular cartilage volumes o

SUBMITTER: Villarreal CX 

PROVIDER: S-EPMC11769871 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature