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目的探讨CT与磁共振技术在股骨头坏死诊断中的应用价值。方法选取2013年1月至2015年1月巩义市人民医院接受治疗的80例股骨头坏死患者为研究对象,按照自愿原则,将其均分为CT组和MRI组。CT组:采用CT扫描仪进行检测;MRI组:采用MRI技术进行检测。比较两种检测方法对股骨头坏死的检出情况。结果 CT组阳性检出率为57.50%,MRI组为80.00%,MRI组检出率明显高于CT对照组(P<0.05)。CT组Ⅰ期、Ⅱ期、Ⅲ期、Ⅳ期患者例数分别为16例、6例、1例、0例,MRI组Ⅰ期、Ⅱ期、Ⅲ期、Ⅳ期患者例数分别为11例、10例、6例、5例,在Ⅰ期、Ⅱ期例数上未见明显差异,而在Ⅲ期、Ⅳ期,MRI组明显高于CT组(P<0.05)。结论磁共振技术检测股骨头坏死检出率更高,分级更准确,可作为诊断股骨头坏死的重要指标。
Objective To investigate the value of CT and magnetic resonance imaging in the diagnosis of osteonecrosis of the femoral head. Methods Eighty patients with osteonecrosis of the femoral head treated at Gongyi People’s Hospital from January 2013 to January 2015 were selected as the research objects. According to the voluntary principle, they were equally divided into CT group and MRI group. CT group: using CT scanner for detection; MRI group: using MRI technology for testing. Compare the detection of femoral head necrosis between the two methods. Results The positive rate of CT was 57.50% in CT group and 80.00% in MRI group. The detection rate of MRI group was significantly higher than that of CT control group (P <0.05). The number of cases in stage Ⅰ, stage Ⅱ, stage Ⅲ and stage Ⅳ in CT group were 16, 6, 1 and 0, respectively. The number of patients in stage Ⅰ, Ⅱ, Ⅲ and Ⅳ of MRI group were 11 , 10 cases, 6 cases and 5 cases. There was no significant difference in the number of cases between stage Ⅰ and stage Ⅱ, but in stage Ⅲ and stage Ⅳ, MRI group was significantly higher than that of CT group (P <0.05). Conclusion The detection rate of femoral head necrosis by magnetic resonance imaging is higher and the classification is more accurate, which can be used as an important index in the diagnosis of femoral head necrosis.