To evaluate the
difference in the age-related cartilage changes of the humeral head with T1ρ
relaxation time mapping and assess the normal distribution of the proteoglycan
content of the humeral head in healthy volunteers without any symptoms or
structural disorders.
Twenty male
volunteers (10 young subjects, 10 elderly subjects) for each generation group
(mean age, young subjects: 30.2 ± 2.3 years; elderly subjects: 62.6 ± 6.2 years)
participated in this study.
Spectral
attenuated inversion recovery T2-weighted imaging and T1ρ relaxation time
mapping were performed using 3.0-Tesla magnetic resonance imaging.
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