关键词: 乳腺癌, 微小钙化, 超声检查, 钼靶

Abstract:

【Abstract】〓Objective〓To compare the diagnostic agreement of ultrasound and mammography for detection of microcalcification in breast cancer and to investigate the factors that influence on diagnostic accuracy of ultrasound. Methods〓Eighty-seven patients with breast cancer underwent both ultrasound and mammography. Characteristics of breast lesions and microcalcifications were analyzed. The diagnostic consistency and influential factors in detection microcalcifications were also compared. Results〓Detection rate and accurate diagnosis of malignancy in ultrasound were higher than inmammography (χ2=9.911, P=0.002). No statistically significant difference was found for detection of microcalcifications between ultrasound and mammography (P>0.05), and higher consistency was found between them (k=0.652). Compared with mammography that was regarded as the standard in detection of microcalcifications, ultrasound had a sensitivity of 82.1%, a specificity of 83.3%, a false positive rate of 16.7%, afalse negative rate of 17.9% for detecting microcalcifications. The size and cluster of the microcalcifications in mammography in fluenced the detection of microcalcifications with ultrasound (P<0.05). Conclusion〓Ultrasound is more sensitive than mammography in detection and diagnosis of breast malignancy. Ultrasound is effective to detect microcalcificationsin breast cancer, but is influenced by the size and cluster of microcalcifications.

Key words: Breast cancer, Microcalcifications, Ultrasound, Mammography