CT在骨肿瘤定性诊断中的价值(附70例分析)

目的：探讨ＣＴ在骨肿瘤定性诊断中的价值。材料和方法：回顾性分析７０例经手术、病理或临床证实的骨肿瘤ＣＴ资料，其中恶性肿瘤５０例，良性肿瘤和肿瘤样病变２０例，部分病例与平片资料进行对照。结果：在有平片资料的５６例骨肿瘤中，平片定性正确３８例，定性正确率６７９％，ＣＴ结合平片定性正确４９例，定性正确率８７５％。ＣＴ定性的价值在于：①病变检出率高。②显示病变内部结构和骨外软组织肿块清晰。③显示病变的膨胀性和皮质完整性佳。④增强扫描利于确定病变的成份和血供。结论：ＣＴ对骨肿瘤定性有其独到之处，与Ｘ线平片相结合能明显提高定性正确率。

The value of CT in predicting the nature of bone tumor(analysis of 70 cases)

Objective:To evaluate CT in predicting the nature of bone tumor.Materials and Methods:CT images of 70 patients with 50 malignant bone tumors and 20 benign bone tumors or tumor-like lesions ,confirmed pathologically or clinically, were analyzed retrospectively.The CT findings were compared with those from plain radiography in regard to tumor detection and diagnosis.Results:Among 56 cases of bone tumor with plain radiography,radiography correctly suggested a specific diagnosis in 38 patients and the rate of the correct diagnosis was 679%.49 cases were correctly predicted with CT combined radiography,and the rate was 875%.The merits of CT in predicting the nature of bone tumor were as follows:The ability in detecting the lesion.Well demonstrated the component of the lesion and soft tissue extension.Accurately depicted the expansion of the lesion and integrity of the cortex.Soundly appreciated the histological component and vascularity of the lesion with postcontrast scan.Conclusion:CT yielded new and unique information with combination of radiography.CT can make a more accurate prediction of the nature of bone tumor.