ĐẶC ĐIỂM HÌNH ẢNH NỐT PHỔI SÀNG LỌC DƯƠNG TÍNH THEO THANG ĐIỂM LUNG-RADS TRÊN CẮT LỚP VI TÍNH LIỀU THẤP TẠI BỆNH VIỆN ĐẠI HỌC Y HÀ NỘI

Abstract

Objective: Describe the imaging characteristics of positive creening lung nodules with Lung-RADS by low-dose computed tomography (LDCT). Subjects and methods: A cross-sectional prospective study was conducted on all patients who underwent LCT and had positive lung nodule screening results with Lung-RADS at Hanoi Medical University Hospital from January 2024 to December 2024. Results: There were 96 cases that suitbale with the selection criteria with lung nodules classified as Lung-RADS 3, 4A, 4B and 4X. The medium age was 56 ± 12 years old, the age group from 50 to 80 years old was the highest (59.4%). Male patients accounted for 79.2% of the study subjects. 46.9% of patients had smoking habits at different levels. There were 48 patients (45.8%) had lung nodules classified as Lung-RADS 4A, 4B and 4X with a high risk of malignancy. Lung-RADS was statistical significantly to the age and smoking habits of the patients. LDCT detected 14 cases of lung cancer in 96 cases of positive lung nodule screening (accounting for 14.6%). The radiation dose of LDCT was significantly lower at 92.4% than standard CT. Conclusion: LDCT scan has a practical role in lung nodule screening, while significantly limiting radiation risk. Lung-RADS is useful in diagnosis, management recommendations, and follow-up of lung nodules.