PMID- 37295952 OWN - NLM STAT- MEDLINE DCOM- 20231023 LR - 20231023 IS - 1742-3406 (Electronic) IS - 0144-8420 (Linking) VI - 199 IP - 12 DP - 2023 Jul 21 TI - Chest CT utilization in COVID-19: a dosimetric and diagnostic-quality study. PG - 1257-1263 LID - 10.1093/rpd/ncad174 [doi] AB - 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. CI - (c) The Author(s) 2023. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com. FAU - Saeed, Mohammed K AU - Saeed MK AD - Department of Radiological Sciences, Faculty of Applied Medical Sciences, Najran University, Najran 1988, Saudi Arabia. FAU - Alshamrani, Hassan A AU - Alshamrani HA AUID- ORCID: 0000-0003-0569-5887 AD - Department of Radiological Sciences, Faculty of Applied Medical Sciences, Najran University, Najran 1988, Saudi Arabia. FAU - Abdullah, Youssef M AU - Abdullah YM AUID- ORCID: 0000-0001-8434-2515 AD - Department of Radiological Science and Medical Imaging, College of Applied Medical Sciences, Majmaah University, Al-Majmaah 11952, Saudi Arabia. FAU - Ali, Ali Sid Ahmed M AU - Ali ASAM AD - Faculty of Science and Technology, Al Neelain University, Medical Physics Department, Khartoum 12702, Sudan. FAU - Almalki, Y AU - Almalki Y AD - College of Medicine, Najran University, P.O Box 1988, Najran, Saudi Arabia. FAU - Alqfail, Khaled A AU - Alqfail KA AD - College of Medicine, Najran University, P.O Box 1988, Najran, Saudi Arabia. LA - eng GR - Deanship of Scientific Research at Najran University/ GR - NU/RG/MRC/12/1/Research Group Funding Program/ PT - Journal Article PL - England TA - Radiat Prot Dosimetry JT - Radiation protection dosimetry JID - 8109958 SB - IM MH - Humans MH - Radiation Dosage MH - Retrospective Studies MH - *COVID-19/diagnostic imaging MH - Tomography, X-Ray Computed MH - *Pneumonia MH - COVID-19 Testing EDAT- 2023/06/10 15:13 MHDA- 2023/10/23 00:42 CRDT- 2023/06/09 21:38 PHST- 2022/06/16 00:00 [received] PHST- 2023/05/13 00:00 [revised] PHST- 2023/05/18 00:00 [accepted] PHST- 2023/10/23 00:42 [medline] PHST- 2023/06/10 15:13 [pubmed] PHST- 2023/06/09 21:38 [entrez] AID - 7192820 [pii] AID - 10.1093/rpd/ncad174 [doi] PST - ppublish SO - Radiat Prot Dosimetry. 2023 Jul 21;199(12):1257-1263. doi: 10.1093/rpd/ncad174.