ĐẶC ĐIỂM TẬP TRUNG 18FDG CỦA TỔN THƯƠNG U, HẠCH TRÊN PET/CT Ở BỆNH NHÂN UNG THƯ PHỔI KHÔNG TẾ BÀO NHỎ CÓ CHỈ ĐỊNH PHẪU THUẬT TRIỆT CĂN TẠI BỆNH VIỆN U BƯỚU HÀ NỘI

Abstract

Purpose: To review some clinical features, characteristics of ¹⁸FDG uptake of tumors and lymph nodes on PET/CT in NSCLCpatients with indications for radical surgery at Hanoi Oncology Hospital. Subjects and methods: 82 patients with primary NSCLC were taken with ¹⁸FDG PET/CT before surgery. Results: Right lung tumor 64.6%, left lung tumor 35.4%. The average size of the tumor was 2.6 ± 1.0 cm, the patient with lymph node (+) on PET/CT had an average lung tumor size of 3.3 ± 0.9cm; larger than patients with N0 lymph nodes (p < 0.05). The mean SUV_max of lung tumors was 6.0 ± 4.5 and increased with tumor size (positive correlation, r=0.58). U ≤2cm, SUV_max = 4.1 ± 2.1. U >2-3cm, SUV_max = 5.3 ± 3.6 and U >3 -5cm, SUV_max = 8.3 ± 4.9. SUV_max increases with clinical disease stage and is higher in patients with positive lymph nodes on PET/CT. Conclusion: ¹⁸FDG PET/CT plays an important role in the diagnosis of NSCLC. SUV_max is a quantitative parameter related to tumor size, lymph node status and clinical disease stage.