KHẢO SÁT ĐẶC ĐIỂM HÌNH ẢNH CHỤP CẮT LỚP VI TÍNH VÀ CHỤP MẠCH MÁU SỐ HÓA XÓA NỀN TRONG CHẨN ĐOÁN NGUYÊN NHÂN GÂY HO RA MÁU

Abstract

Introduction: Hemoptysis is a dangerous symptom that is quite common in Vietnam. The results of hemoptysis treatment and the risk of recurrence depend on the cause, severity of hemoptysis and treatment method, so early diagnosis of the severity, location of damage and cause of hemoptysis is very important. Diagnostic imaging tools, especially computed tomography and digital subtraction angiography, play an important role in suggesting the location of bleeding as well as the cause of hemoptysis with high accuracy. Objective: Survey of imaging characteristics of computed tomography and digital subtraction angiography (DSA) in diagnosing the cause of hemoptysis. Methods: This is a retrospective cross-sectional study including 55 patients with hemoptysis treated at Cho Ray Hospital and University Medical Center HCMC from January 2021 to June 2023. Analyze and compare image characteristics on computed tomography and digital subtraction angiography between causes of hemoptysis. From there, determine the value of computed tomography and digital subtraction angiography in diagnosing the cause of hemoptysis. Results: Computed tomography helps accurately diagnose the location of the lesion causing hemoptysis in 94.5% of cases and the cause of hemoptysis in 80% of cases. Imaging features of high value in diagnosing the cause of hemoptysis are mass lesions, cavitary lesions, “air crescent” signs, and bronchiectasis lesions. Conclusion: Computed tomography and  digital subtraction angiography are highly valuable in diagnosing the location of bleeding sites and the cause of hemoptysis.