老年股骨头坏死影像表现特点及鉴别诊断

目的 探讨CT与MRI诊断早期老年股骨头坏死的表现特点以及鉴别诊断方法.方法 160例患者先后行CT和MRI扫描,并检测阳性率、确诊率及临床分期.结果 CT与MRI的检测阳性率差异无统计学意义(P＞0.05)；MRI的阳性检出患者经手术确诊率明显高于CT组,数据经统计学比较差异有统计学意义(P＜ 0.05)；CT和MRI对阳性患者检测分期差异无统计学意义(P＞0.05).结论 CT和MRI具有相似的临床检出率,而MRI较CT具有更高的检出率.临床对老年股骨头坏死的诊断应综合多类影像学资料、并结合临床资料与经验,方可获得更加准确的诊断结果.

Imaging performance features and differential diagnosis of Elderly femoral head necrosis

OBJECTIVE To investigate the performance characteristics of CT and MRI in diagnosis of early senile femoral head necrosis. METHODS 160 patients taken CT and MRI scans, and the positive rate of diagnosis rate and clinical stage were de- termined. RESULTS The positive rate of CT and MRI in the detection of significant differences (P﹥0.05); MRI positive diag- nosis rate of patients after surgery was significantly higher than the CT group, the data were statistically significant differences (P﹤0.05); CT and MRI for the detection of positive patients staging had no significant difference (P﹥0.05). CONCLUSION CT and MRI had similar clinical detection rate, MRI had higher detection rate than CT. The clinical diagnosis of senile femoral head necrosis should take consideration of many types of imaging data and clinical data and experience , so as to obtain a more accurate diagnosis.