ĐẶC ĐIỂM HÌNH ẢNH 18FDG-PET/CT TRÊN BỆNH NHÂN UNG THƯ PHỔI KHÔNG TẾ BÀO NHỎ CÓ CHỈ ĐỊNH PHẪU THUẬT TRIỆT CĂN

Abstract

Objective: To study ¹⁸FDG-PET/CT imaging characteristics on non-small cell lung cancer patients indicated for radical surgery. Subjects and methods: Descriptive prospective study on 82 non-small cell lung cancer patients scheduled for radical surgery at Hanoi Oncology Hospital from April 2022 to March 2023. Results: The majority of patients had right lung tumors (64.6%), left lung tumors 35.4%. Average tumor size is 2.7 ± 1.0 cm. There is a relationship between lymph node status and tumor size: The average tumor size in patients with (+) lymph nodes is 3.3 ± 0.9cm, while the group of patients with (-) lymph nodes on ¹⁸FDG PET/CT has. The average tumor size is 2.6 ± 1.0cm (p < 0.05). Median ¹⁸FDG tumor concentration SUVmax = 4.2 (2.5 - 26.9). SUVmax gradually increases according to stages IA, IB, IIA, IIB and IIIA (p < 0.01); positively correlated with tumor size (correlation coefficient r = 0.59). The size of the (+) lymph node is 8.5 ± 3.1mm. Median lymph node 18FDG concentration (+) SUVmax = 2.6 (2.5-19.1). There is a positive correlation between SUVmax and lymph node size (r = 0.73).