NGHIÊN CỨU GIÁ TRỊ CỦA SIÊU ÂM ĐÀN HỒI NÉN-STRAIN ELASTOGRAPHY TRONG ĐÁNH GIÁ BẢN CHẤT KHỐI U VÚ

Abstract

Background: Breast screening and diagnostic breast imaging provides early diagnosis of breast cancer. Although breast imaging modalities have high sensitivity rates, there is still need for a higher specificity in imaging to rule out malignancy in incidentally found breast lesions. Elastography is a promising ultrasonographic technique which is used to differentiate benign and malignant breast lesions based on the stiffness of the lesion. Objectives: To evaluate the performance and value of strain elastography in breast lesions, with pathologic diagnosis from ultrasound-guided core needle biopsy as the gold standard. Materials and methods: A transverse study involving 59 patients with 61 lesions who were classified BIRADS from 3 to 5 after underwent both strain elastography and B-mode ultrasound, and had histopathologic results at Can Tho Oncology Hospital from December 2022 to April 2024. Results: 59 patients aged 47.21.9 years, included 26 benign and 35 maglinant lesions. The sensitivity, specificity, positive predictive value, negative  predictive value, accuracy for the B-mode ultrasound were 97%, 62%, 77%, 94%, 82%. Strain elastography combined with B-mode ultrasound, the sensitivity, specificity, positive predictive value, negative predictive value, accuracy were 97%, 77%, 85%, 95%, 89%. Conclusion: Strain elastography combined with B-mode ultrasound were more effective than conventional ultrasound for distinguishing maglinant from benign breast lesion.