Reproducibility of T_1ρ and T₂ quantification in a multi-vendor multi-site study.

ABSTRACT:

Objective

To evaluate the multi-vendor multi-site reproducibility of two-dimensional (2D) multi-echo spin-echo (MESE) T₂ mapping (product sequences); and to evaluate the longitudinal reproducibility of three-dimensional (3D) magnetization-prepared angle-modulated partitioned k-space spoiled gradient echo snapshots (MAPSS) T_1ρ and T₂ mapping (research sequences), and 2D MESE T₂ mapping, separated by 6 months, in a multi-vendor multi-site setting.

Methods

Phantoms and volunteers (n = 5 from each site, n = 20 in total) were scanned on four 3 T magnetic resonance (MR) systems from four sites and three vendors (Siemens, General Electric, and Phillips). Two traveling volunteers (3 knees) scanned at all 4 sites at baseline and 6-month fol

SUBMITTER: Lartey R 

PROVIDER: S-EPMC10016129 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature