KelvinVoigt – Kích thích đa điểm: Mô hình hiệu quả nâng cao chất lượng ảnh đàn hồi trong mô sâu
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https://doi.org/10.54939/1859-1043.j.mst.110.2026.34-44Từ khóa:
Thuật toán AHI; Bộ lọc LMS; Ảnh đàn hồi mô; Lọc trung vị; Kích thích đa điểm.Tóm tắt
Độ cứng mô là chỉ số quan trọng cho biết tình trạng bệnh lý của cơ thể. Kỹ thuật Siêu âm đàn hồi mô dựa trên đặc tính cơ học của mô giúp chẩn đoán nhiều bệnh như ung thư vú, tuyến giáp, tuyến tiền liệt, hiệu quả với ưu điểm nhanh, chi phí thấp, không xâm lấn và đáng tin cậy. với những ưu điểm trên, kỹ thuật siêu âm đàn hồi mô đang được quan tâm và sử dụng rộng rãi trong chẩn đoán lâm sàng. Tuy nhiên, kĩ thuật cũng gặp phải những bất lợi khi nhiễu xuất hiện nhiều ở những vùng mô sâu gây suy giảm chất lượng ảnh và làm giảm độ chính xác chẩn đoán. Nghiên cứu này đề xuất tích hợp lọc LMS, lọc trung vị và tăng cường nguồn kích thích đa vị trí nhằm cải thiện SNR và tăng cường chất lượng ảnh ở vùng mô sâu. Hiệu quả của phương pháp được đánh giá qua hai chỉ số RMSE và Q-index, cho thấy giảm nhiễu rõ rệt và nâng cao độ tin cậy trong chẩn đoán.
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