GIÁ TRỊ SIÊU ÂM TRONG CHẨN ĐOÁN HẠCH CỔ DI CĂN Ở BỆNH NHÂN UNG THƯ TUYẾN GIÁP THỂ BIỆT HÓA SAU PHẪU THUẬT VÀ ĐIỀU TRỊ 131I

Abstract

Background: The purpose of the study was to evaluate the characters of B Mode and color Doppler ultrasound (CDUS) in diagnosis cervical lymph nodes metastasis in patients with papillary thyroid after surgery and treatment with ¹³¹I. Materials and Methods: Retrospective combined with prospective research, cross-sectional description of 61 patients with 123 lymph nodes, surgical and histopathological in 108 Military Central Hospital during the period from October 2020 to April 2021. Results: We conducted ultrasound in 123 lymph nodes. To compare with the pathology results of the disease, there are 73 metastatic lymph nodes, 50 nonmetastatic lymph nodes. Round shape, loss of an echogenic fatty hilum, echo, calcification, and abnormal vascularity were significantly more common in metastatic than nonmetastatic lymph nodes, whereas the boundary and size did not significantly differ. The sensitivity, specificity, positive predicted value, negative predicted value, the accuracy of 2D ultrasound method combined with Dopper ultrasound are 90,4%, 84 %, 89,2%, 85,7% and 87,8%. Conclusions: Within the limitations of this study, B-mode and CDUS evaluations were found to be highly significant with a high sensitivity and specificity. B-mode and CDUS examinations provide a prospect to reduce the need for biopsy/fine needle aspiration cytology in reactive nodes