Evaluation of Ultra-Low-Dose Chest Computed Tomography Images in Detecting Lung Lesions Related to COVID-19: A Prospective Study

Background: The present study aimed to evaluate the effectiveness of ultra-low-dose (ULD) chest computed tomography (CT) in comparison with the routine dose (RD) CT images in detecting lung lesions related to COVID-19. Methods: A prospective study was conducted during April-September 2020 at Shahid...

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Bibliographic Details
Published in:Iranian journal of medical sciences 2022-07, Vol.47 (4), p.338-349
Main Authors: Zarei, Fariba, Jalli, Reza, Chatterjee, Sabyasachi, Haghighi, Rezvan Ravanfar, Iranpour, Pooya, Chatterjee, Vani Vardhan, Emadi, PhD, Sedigheh
Format: Article
Language:English
Subjects:
computed tomography
Coronaviruses
COVID-19
CT imaging
Information management
Lung diseases
Original
Performance evaluation
Radiation
radiation protection
Tomography
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Summary:Background: The present study aimed to evaluate the effectiveness of ultra-low-dose (ULD) chest computed tomography (CT) in comparison with the routine dose (RD) CT images in detecting lung lesions related to COVID-19. Methods: A prospective study was conducted during April-September 2020 at Shahid Faghihi Hospital affiliated with Shiraz University of Medical Sciences, Shiraz, Iran. In total, 273 volunteers with suspected COVID-19 participated in the study and successively underwent RD-CT and ULD-CT chest scans. Two expert radiologists qualitatively evaluated the images. Dose assessment was performed by determining volume CT dose index, dose length product, and size-specific dose estimate. Data analysis was performed using a ranking test and kappa coefficient ([kappa]). P
ISSN:0253-0716
1735-3688
DOI:10.30476/IJMS.2021.90665.2165