摘要目的评估内侧半月板MRI信号强度变化的自然史。材料与方法收集影像上无膝骨关节炎(OA)和无内侧半月板基底部撕裂的骨性关节炎关节269个(女性占55%,年龄45~55岁)作为此项研究对象。对病人半月板基底部信号强度和撕裂情况进行24个月、48个月和72个月随访观察,由1名影像科医师评价其3 T MRI表现。使用一个具有随机 Abstract Objective To evaluate the natural history of medial meniscus MRI signal intensity. MATERIALS AND METHODS: Totally 269 joints (55% of women and 45-55 years of age) with osteoarthritis without knee osteoarthritis (OA) and without medial meniscus tear were collected for this study. The signal intensity and tear of the basal part of the meniscus were observed at 24 months, 48 ​​months and 72 months. An imaging doctor evaluated the 3T MRI findings. Use one that has randomness