Chest CT utilization in COVID-19: a dosimetric and diagnostic-quality study.

Autor:	Saeed MK; Department of Radiological Sciences, Faculty of Applied Medical Sciences, Najran University, Najran 1988, Saudi Arabia., Alshamrani HA; Department of Radiological Sciences, Faculty of Applied Medical Sciences, Najran University, Najran 1988, Saudi Arabia., Abdullah YM; Department of Radiological Science and Medical Imaging, College of Applied Medical Sciences, Majmaah University, Al-Majmaah 11952, Saudi Arabia., Ali ASAM; Faculty of Science and Technology, Al Neelain University, Medical Physics Department, Khartoum 12702, Sudan., Almalki Y; College of Medicine, Najran University, P.O Box 1988, Najran, Saudi Arabia., Alqfail KA; College of Medicine, Najran University, P.O Box 1988, Najran, Saudi Arabia.
Jazyk:	angličtina
Zdroj:	Radiation protection dosimetry [Radiat Prot Dosimetry] 2023 Jul 21; Vol. 199 (12), pp. 1257-1263.
DOI:	10.1093/rpd/ncad174
Abstrakt:	The purpose of this study is to look at the variations in chest computed tomography (CT) use, radiation dose and image quality in the 2019 novel coronavirus (COVID-19) pneumonia patients in Saudi Arabia. This is a retrospective study of 402 patients with COVID-19, who were treated between February and October 2021. Radiation dose was estimated using metrics of volume CT dose index (CTDIvol) and size-specific dose estimate (SSDE). The imaging performance of the CT scanners was evaluated by measuring different parameters, such as resolution and CT number uniformity, with an ACR-CT accreditation phantom. Expert radiologists assessed the diagnostic quality and occurrence of artefacts. For all of the image quality parameters tested, the majority of the scanner sites (80%) were found to be within the suggested acceptance limits. Ground-glass opacities were the most common finding in our patient sample (54%). On chest CT exams with typical appearance of COVID-19 pneumonia, the most respiratory motion artefacts (56.3%) were present, followed by those with indeterminate appearance (32.2%). There were significant differences in CT utilization, CTDIvol and SSDE across the collaborated sites. The use of CT scans and radiation doses varied in the COVID-19 patients, highlighting the optimizations of CT protocols at participating sites. (© The Author(s) 2023. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.)
Databáze:	MEDLINE
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