PMID- 37250685 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230613 IS - 0969-806X (Print) IS - 0969-806X (Electronic) IS - 0969-806X (Linking) VI - 211 DP - 2023 Oct TI - A closer look at the utilized radiation doses during computed tomography pulmonary angiography (CTPA) for COVID-19 patients. PG - 111025 LID - 10.1016/j.radphyschem.2023.111025 [doi] AB - INTRODUCTION: CTPA stands for computed tomography pulmonary angiography. CTPA is an X-ray imaging that combines X-rays and computer technology to create detailed images of the pulmonary arteries and veins in the lungs. This test diagnoses and monitors conditions like pulmonary embolism, arterial blockages, and hypertension. Coronavirus (COVID-19) has threatened world health over the last three years. The number of (CT) scans increased and played a vital role in diagnosing COVID-19 patients, including life-threatening pulmonary embolism (PE). This study aimed to assess the radiation dose resulted from CTPA for COVID-19 patients. METHODS: Data were collected retrospectively from CTPA examinations on a single scanner in 84 symptomatic patients. The data collected included the dose length product (DLP), volumetric computed tomography dose index (CTDIvol), and size-specific dose estimate (SSDE). The organ dose and effective dose were estimated using VirtualDose software. RESULTS: The study population included 84 patients, 52% male and 48% female, with an average age of 62. The average DLP, CTDIvol, and SSDE were 404.2 mGy cm, 13.5 mGy, and 11.6 mGy\, respectively. The mean effective doses (mSv) for males and females were 3.01 and 3.29, respectively. The maximum to minimum organ doses (mGy) between patients was 0.8 for the male bladder and 7.33 for the female lung. CONCLUSIONS: The increase in CT scans during the COVID-19 pandemic required close dose monitoring and optimization. The protocol used during CTPA should guarantee a minimum radiation dose with maximum patient benefits. CI - (c) 2023 Elsevier Ltd. All rights reserved. FAU - Abuzaid, Mohamed AU - Abuzaid M AD - Medical Diagnostic Imaging Department, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates. AD - Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates. FAU - Elshami, Wiam AU - Elshami W AD - Medical Diagnostic Imaging Department, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates. AD - Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates. FAU - Cavli, Baris AU - Cavli B AD - Affidea, Istanbul, Turkey. FAU - Ozturk, Ceren AU - Ozturk C AD - Affidea, Istanbul, Turkey. FAU - ALMisned, Ghada AU - ALMisned G AD - Department of Physics, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia. FAU - Tekin, H O AU - Tekin HO AD - Medical Diagnostic Imaging Department, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates. AD - Istinye University, Faculty of Engineering and Natural Sciences, Computer Engineering Department, Istanbul, 34396, Turkey. LA - eng PT - Journal Article DEP - 20230525 PL - England TA - Radiat Phys Chem Oxf Engl 1993 JT - Radiation physics and chemistry (Oxford, England : 1993) JID - 9887854 PMC - PMC10210819 OTO - NOTNLM OT - COVID-19 OT - Computed tomography OT - Effective dose OT - Organ dose OT - Pulmonary embolism OT - Radiation dose COIS- The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/05/30 13:07 MHDA- 2023/05/30 13:08 PMCR- 2023/05/25 CRDT- 2023/05/30 11:27 PHST- 2023/04/06 00:00 [received] PHST- 2023/05/04 00:00 [revised] PHST- 2023/05/11 00:00 [accepted] PHST- 2023/05/30 13:08 [medline] PHST- 2023/05/30 13:07 [pubmed] PHST- 2023/05/30 11:27 [entrez] PHST- 2023/05/25 00:00 [pmc-release] AID - S0969-806X(23)00270-0 [pii] AID - 111025 [pii] AID - 10.1016/j.radphyschem.2023.111025 [doi] PST - ppublish SO - Radiat Phys Chem Oxf Engl 1993. 2023 Oct;211:111025. doi: 10.1016/j.radphyschem.2023.111025. Epub 2023 May 25.