Quantitative T₂ Mapping of Knee Cartilage: Comparison between the Synthetic MR Imaging and the CPMG Sequence

Abstract

The purpose was to evaluate the feasibility of quantitative MRI T₂ mapping based on the quantitative MRI (QRAPMASTER) sequence for the quantitative assessment of knee cartilage. The T₂ values from the phantom study showed excellent correlation between the two techniques (r² = 0.998). The cartilage T₂ values exhibited strong correlations (r² = 0.867–0.982). Quantitative MRI (qMRI) T₂ mapping can be used as an alternative to multi-echo T₂ mapping, with relatively short scan time.