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    题名: T2 Values of Posterior Horns of Knee Menisci in Asymptomatic Subjects
    作者: Chiang, Shih-Wei;Tsai, Ping-Huei;Chang, Yue-Cune;Wang, Chao-Ying;Chung, Hsiao-Wen;Lee, Herng-Sheng;Chou, Ming-Chung;Hsu, Yi-Chih;Huang, Guo-Shu
    贡献者: 淡江大學數學學系
    关键词: Aging;Anatomy and physiology;Biology;Cartilage;Diagnostic radiology;Magnetic resonance imaging;Medicine;Musculoskeletal system;Physiology;Radiology;Radiology and Medical Imaging;Research Article;Rheumatology
    日期: 2013-03
    上传时间: 2013-11-22 11:45:55 (UTC+8)
    出版者: San Francisco: Public Library of Science
    摘要: Purpose: The magnetic resonance (MR) T2 value of cartilage is a reliable indicator of tissue properties and therefore may be used as an objective diagnostic tool in early meniscal degeneration. The purpose of this study was to investigate age, gender, location, and zonal differences in MR T2 value of the posterior horns of knee menisci in asymptomatic subjects. Methods: Sixty asymptomatic volunteers (30 men and 30 women) were enrolled and divided into three different age groups: 20–34, 35–49 and 50–70 years. The inclusion criteria were BMI<30 kg/cm2, normalized Western Ontario and McMaster Universities (WOMAC) pain score of zero, and no evidence of meniscal and ligamentous abnormalities on routine knee MR imaging. The T2 values were measured on images acquired with a T2-weighted fat-suppressed turbo spin-echo sequence at 3T. Results: The mean T2 values in both medial and lateral menisci for the 20–34, 35–49, and 50–70 age groups were 9.94 msec±0.94, 10.73 msec±1.55, and 12.36 msec±2.27, respectively, for women and 9.17 msec±0.74, 9.64 msec±0.67, and 10.95 msec±1.33, respectively, for men. The T2 values were significantly higher in the 50–70 age group than the 20–34 age group (P<0.001) and in women than in men (P = 0.001, 0.004, and 0.049 for each respective age group). T2 values were significantly higher in medial menisci than in lateral menisci only in women age 50–70 (3.33 msec, P = 0.006) and in the white zone and red/white zone of the 50–70 and 35–49 age groups than that of the 20–34 age group (2.47, 1.02; 2.77, 1.16 msec, respectively, all P<0.01). Conclusion: The MR T2 values of the posterior meniscal horns increase with increasing age in women and are higher in women than in men. The age-related rise of T2 values appears to be more severe in medial menisci than in lateral menisci. Differences exist in the white zone and red/white zone.
    關聯: PLoS ONE 8(3), 59769(9pages)
    DOI: 10.1371/journal.pone.0059769
    显示于类别:[數學學系暨研究所] 期刊論文

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