Đánh giá giá trị chẩn đoán ung thư vú của siêu âm đàn hồi nén và sóng biến dạng

SUMMARY

Objective: Evaluating the value of B-mode ultrasound and elastography ultrasound in the diagnosis of breast cancer.

Methods: Breast lesion patients were classified BIRADS from 3 to 5 after underwent B-mode ultrasound and elastography ultrasound examination and done biopsy to have histopathological results at Bach Mai Hospital from July 2019 to February 2020.

Results: The cut-off value of fat-to-lesion ratio is 28,4 with sensitivity (Se), specificity(Sp) and accuracy (Acc) were 76,9%; 93,3%; 85,7% respectively. The cut-off value of Elasto/B-mode ratio is 1 with Se, Sp, Acc were 100%, 73,3%; 85,7%. Se, Sp and Acc of shear-wave elastography were 100%; 97,8% and 97,5% respectively with the cut-off value is 36 kPa. Sp, Se and Acc of Tsukuba score were respectively 84,6%; 88,9%; 86,9%. B-mode ultrasound combine with shear-wave elastography has highest Se and Sp were 100%; 91,1% respectively.

Conclusion: Elastography ultrasound combine with B-mode ultrasound can upgrade or downgrade the BIRADS level, so they can increase accuracy to diagnose breast cancer especially BIRADS 3 or 4a lesions.