LIỀU CHIẾU TRONG CHỤP CẮT LỚP VI TÍNH LIỀU THẤP THEO DÕI BỆNH NHÂN CHẤN THƯƠNG SỌ NÃO

Abstract

Objective: Study the role of low-dose computed tomography (CT) in monitoring patients with traumatic brain injury (TBI). Subjects and Methods: A cross-sectional descriptive study included 50 patients diagnosed with TBI who were under treatment and follow-up, and who underwent both standard (130 kV, 220 mAs) and low-dose (130 kV, 80 mAs) cranial CT scans. Results: Males accounted for 78%, and 78% of the patients were under 60 years old. The dose length product (DLP) for low-dose CT was 328.3 ± 68.94 mGycm, significantly lower than the standard CT which was 674.23 ± 127.15 mGycm (p<0.05). Similarly, the effective dose (Ed) for low-dose CT was 0.73 ± 0.15 mSv, lower than the standard CT which was 1.49 ± 0.29 mSv (p<0.05). Despite this, the image quality of both standard and low-dose CT scans was equivalent. Conclusion: Low-dose CT significantly reduces radiation exposure for patients while still providing sufficient information for diagnosis