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Comparison of Apparent Diffusion Coefficient and T2 Relaxation Time Variation Patterns in Assessment of Age and Disc Level Related Intervertebral Disc Changes

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单位: [1]Peking Union Med Coll, Peking Union Med Coll Hosp, Dept Orthoped, Beijing 100021, Peoples R China [2]Chinese Acad Med Sci, Beijing 100730, Peoples R China [3]Harvard Univ, Sch Med, Boston, MA USA [4]Peking Union Med Coll, Beijing 100021, Peoples R China [5]China Japan Friendship Hosp, Dept Radiol, Beijing, Peoples R China [6]305 Hosp Peoples Liberat Army, Dept Radiol, Beijing, Peoples R China
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Purpose: To compare the variation patterns of ADC and T2 values in different age and intervertebral disc (IVD) levels, thus to identify their sensitivities in assessing age and disc level related IVDs changes. Materials and Methods: The T2 and ADC values were recorded from 345 IVDs of 69 volunteers. Kendall's correlation analysis was used to identify the relationship between age and T2/ADC mean values respectively. The one-way analysis of variance (ANOVA) with post hoc analysis was then applied to test the differences of T2 and ADC values among different IVD levels and age groups, followed by linear regression analysis between age (<45 and >45 years) and T2/ADC mean values. This study was approved by the Ethics Committee of the Chinese Academy of Medical Sciences and the Peking Union Medical College Hospital. Results: Significant negative correlation was observed between age and T2/ADC mean values. The T2 and ADC values showed significant differences among IVD levels and among age groups except for T2 values in age group 1 (25-34 years) and group 2 (35-44 years), and for ADC values at L1-2 level. Both T2 and ADC values showed significant differences between young (age<45 years) and elderly group (age>45 years) at each IVD level. A linear relationship was observed between age and T2/ADC mean values in the elderly group as well as in the young group for the ADC mean values, while no such tendency was identified in the young group for the T2 mean values. Conclusions: ADC values may be a more sensitive parameter than T2 in assessing age and disc level related intervertebral disc changes.

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出版当年[2012]版:
大类 | 2 区 生物
小类 | 2 区 生物学
最新[2025]版:
大类 | 3 区 综合性期刊
小类 | 3 区 综合性期刊
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出版当年[2011]版:
Q1 BIOLOGY
最新[2024]版:
Q2 MULTIDISCIPLINARY SCIENCES

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第一作者单位: [1]Peking Union Med Coll, Peking Union Med Coll Hosp, Dept Orthoped, Beijing 100021, Peoples R China [2]Chinese Acad Med Sci, Beijing 100730, Peoples R China
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