Gía trị của X quang và siêu âm trong sàng lọc ung thư vú ở phụ nữ từ 40 tuổi trở lên

Value of mammography, ultrasound in breast cancer screening with women ≥40 years old

SUMMARY

Objective: To research the value of mammography, ultrasound in breast cancer screening with women ≥ 40ys.

Methods: Including of the study was 1319 women (age ≥40) in the range of six months with breast cancer screening at University Medical Center, Hochiminh city, from 1 June 2014 to 31 May 2016. Mammography and ultrasound were performed using BI-RADS (The Breast Imaging and Reporting Data System) of the American College of Radiology. Breast cancer was determined by histopathological results.

Results: The proportion of breast cancer was 1.67% (22/1319). Among 22 cancers detected, 19(14.4/1000) with mammography, 18(13.65/1000) with ultrasound. The sensitivity, specificity of mammography respectively were 86.36% (IC 95%: 65.09-97.09), 99% (98.29-99.47) higher than ultrasound: 81.82% (59.71-94.81); 95.45% (94.18-95.52). When combined two tests, the sensitivity and specificity respectively were 100% (IC 97.5%:84.56-100), 95.37% (94.09-96.45); PPV was decreased (26.83%) (17.63-37.75) compared to mammography (59.38%) (40.64-76.3); NPV was increased (100%)(IC 97.5%: 99.7-100) compared to mammography (99.77%) (99.32-99.95)or ultrasound alone (99.68%)(99.18-99.91).

Conclusions: The sensitivity and specificity of breast cancer screening with mammography were higher than ultrasound alone. When combined two tests, it was increased the sensitivity, decreased the specificity compared to mammography alone.

Keywords: breast cancer screening, mammography, ultrasound.