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Repeatability study demonstrates excellent scan-rescan agreement for simultaneous T2 and T1ρ knee mapping at 7 Tesla, highlighting its clinical potential for detecting cartilage degeneration.
The aim of this study was to evaluate the in vivo scan-rescan repeatability of T2 and T1ρ quantification in knee cartilage and meniscus of patients with knee pain at 7 Tesla. Four subjects were scanned-rescanned on the same day using the 10-minutes-long MAPSS sequence for simultaneous T2 and T1ρ mapping. Coefficients of variation and Bland-Altman plots showed excellent scan-rescan repeatability of in vivo T2 and T1ρ quantification in cartilage and meniscus at 7 Tesla. Our results indicate that fast T2 and T1ρ mapping with four echo and four spin-lock times remains sensitive to cartilage degeneration.
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Zbýň et al. (2024) studied this question.
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