目的 :评价钼靶乳腺摄影与数字化乳腺摄影对乳腺微小钙化的诊断价值 ,并探讨恶性钙化的诊断标准。方法 :对87例微小钙化钼靶乳腺摄影及数字化乳腺摄影资料采用双盲法进行前瞻性研究 ,做出定性诊断并与术后病理结果对照。结果 :钼靶乳腺摄影与数字化乳腺摄影对乳腺微小钙化良、恶性的判断 ,敏感性分别为81 25 % ,96 88 % ,特异性分别为92 73% ,96 36 % ,二者灵敏性有显著差异(u=2 00,P<0 05) ,数字化乳腺摄影优于钼靶乳腺摄影 ;特异性二者无显著差异(u=0 84 ,P>0 05)。病理证实为恶性钙化32例 ,X线片显示钙化颗粒大小一般在0 01～0 5mm直径范围内 ,密度深浅不一 ,形态呈点状、小分枝状或两者兼有泥沙样钙化 ,多形性是恶性钙化的特征。1cm2 范围内微小钙化数目≥5粒时 ,尤其是肿块中心或周围伴有微小钙化 ,多为恶性。结论 :钼靶乳腺摄影与数字化乳腺摄影均为诊断乳腺微小钙化的最基本影像学检查方法 ,对微小钙化的检出及定性上 ,数字化乳腺摄影优于钼靶乳腺摄影。当1cm2 范围内微小钙化数目≥5粒时 ,可做为诊断恶性钙化的参考指标 ,加之形态、密度、大小及周围改变是诊断良、恶性钙化的较为可靠征象 Objective: To evaluate the diagnostic value of mammography and digital mammography in the diagnosis of microcalcifications of the breast, and to explore the diagnostic criteria of malignant calcification. Methods: A prospective study of 87 patients with mammography and digital mammography was performed by double-blind method. The results of qualitative diagnosis and postoperative pathological results were compared. Results: The sensitivity and sensitivity of molybdenum target mammography and digital mammography in the diagnosis of benign and malignant breast microcalcifications were 81 25% and 96 88%, respectively, and the specificity were 92 73% and 96 36%, respectively. The sensitivity was significant (U = 200, P <0.05). Digital mammography was superior to mammography mammography. There was no significant difference between the two methods (u = 0 84, P> 0.05). Pathological confirmed malignant calcification in 32 cases, X-ray film shows the size of calcified particles are generally 0 01 ~ 0 5mm diameter range, the density of different shades, the shape was dotted, small branches or both sediment-like calcification, Polymorphism is a characteristic of malignant calcification. 1cm2 within the scope of the number of small calcifications ≥ 5, especially around the center or mass with calcification, mostly malignant. Conclusion: Both mammography and digital mammography are the most basic imaging methods for the diagnosis of microcalcifications of the breast. The detection of microcalcification and qualitative and digital mammography are superior to mammography. When the number of tiny calcifications in the range of 1cm2 is more than or equal to 5, it can be used as a reference index for the diagnosis of malignant calcification, and the morphological, density, size and surrounding changes are more reliable signs of benign and malignant calcifications