X线与CT诊断对成软骨细胞瘤的诊断价值对比分析

目的探讨X线与CT诊断对成软骨细胞瘤的诊断价值，提高对本病的诊断水平。方法收集2002年6月至2011年3月拟诊断为成软骨细胞瘤患者32例，均行X线和CT检查。结果X线显示病灶均为圆形或不规则形局限性骨破坏区，CT显示病灶呈不同程度的分叶状，边界清楚，半环形钙化。以病理结果为标准判断，X线诊断的敏感性为96．2％，特异性为16．7％，CT的诊断敏感性与特异性分别为96．8％和100．0％。两种检查方法诊断的敏感性均较高，对比无明显差异。但是CT诊断的特异性明显高于X线诊断（P〈0．05）。结论成软骨细胞瘤的X线诊断与CT诊断各具优势，但是CT诊断的特异性更好，在临床应用中两者相结合能够提供更多的诊断信息，有利于本病的诊断与鉴别诊断。

Comparative analysis of X-ray and CT diagnosis of chondroblastoma

Objective To investigate the comparative value of X-ray and CT diagnosis of chondroblastoma and to improve the level of diagnosis of this disease. Methods 32 patients with chondroblastoma from June 2002 to March 2011 were selected to do the X-ray and CT scan. Results X-ray showed that the lesions were round or irregular in shape limitations of bone destruction, CT showed the lesions were varyed degrees of lobulated border and clear, semi-annular calcification. According to the pathological findings, the sensitivity of X-ray diagnos- tic was 96.2%, specificity was 16.7% ; the sensitivity and specificity of CT diagnostic were respectively 96.8% and 100.0%. The two sets of diagnostic sensitivity were relatively high and had no significant difference. But the specificity of CT in the diagnosis was significantly higher than the X-ray diagnosis （P 〈 0.05 ）. Conclusion Both the X-ray and CT scan diagnosis of chondroblastoma have its own advantages, but the specificity of CT is better, combination of the two can provide more diagnostic information in clinical applications, which is value to the diagnosis and differential diagnosis.