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:: Volume 22, Issue 2 (4-2024) ::
Int J Radiat Res 2024, 22(2): 501-504 Back to browse issues page
Low cancer risk by implementing low-dose chest computed tomography protocol during Covid-19 outbreak
F. Rasoulinejad , M. Keshtkar
Medical Physics and Radiology Department, Faculty of Medicine, Infectious Diseases Research Center, Gonabad University of Medical Sciences, Gonabad, Iran , Keshtkar.dmohammad@yahoo.com
Abstract:   (352 Views)
Background: The aim of this study was to evaluate the radiation dose effect of a low-dose chest computed tomography (CT) protocol implemented in our hospital during the outbreak of Coronavirus disease 2019 (COVID-19) by estimating lifetime attributable risk (LAR). Materials and Methods:  A total of 583 patients were randomly included in this study. The values of volumetric CT dose index (CTDIvol, mGy) and dose length product (DLP, mGy.cm) were extracted from CT console. CT-Expo is a CT dose software that was used to estimate effective dose (E) and organ doses. Lifetime attributed risk (LAR) of cancer incidence were calculated according to the Biological Effects of Ionizing Radiation (BEIR) VII report. Results: Of the 583 patients included in this study, 262 (44.9%) were men and 321 (55.1%) were women. The third quartile of CTDIvol and DLP were 2.5 mGy and 79.4 mGy.cm, respectively. The mean value of E was 1.1 ± 0.3 mSv, and it was statistically higher in females. Esophagus, lung and thymus received highest doses, and also in females breast received highest dose. The mean LAR of lung cancer was 5.3 per 100,000 patients, while the mean LAR of liver cancer was 0.1 per 100,000 patients. Conclusions: Despite the large number of chest CT scans during the Covid-19 era, the low-dose chest CT protocol implemented in our hospital caused low doses to organs and very low cancer risks.
Keywords: Tomography, X-Ray computed, Covid-19, lifetime risk, radiation exposure.
Full-Text [PDF 577 kb]   (111 Downloads)    
Type of Study: Short Report | Subject: Radiation Biology
References
1. He X, Zheng J, Ren J, et al. (2020) Chest high-resolution computed tomography imaging findings of coronavirus disease 2019 (Covid-19) pneumonia. Int J Radiat Res, 18(2): 343-9.
2. Mahmoudabadi A, Masoumi H, Keshtkar M, et al. (2021) Common and Uncommon Imaging Appearances of COVID-19 Pneumonia in Young and middle-aged group and elderly group. Frontiers in Biomedical Technologies, 8(2): 123-30. [DOI:10.18502/fbt.v8i2.6516]
3. Revel M-P, Parkar AP, Prosch H, et al. (2020) Covid-19 patients and the radiology department-advice from the European Society of Radiology (ESR) and the European Society of Thoracic Imaging (ESTI). European radiology, 30(9): 4903-9. [DOI:10.1007/s00330-020-06865-y]
4. Cristofaro M, Fusco N, Petrone A, et al. (2021) Increased radiation dose exposure in thoracic computed tomography in patients with Covid-19. Radiation, 1(2): 153-61. [DOI:10.3390/radiation1020014]
5. Keshtkar M, Blouri B, Mahmoudabadi A, Alami A (2023) Eye radiation dose saving in head CT examinations using copper-bismuth radiation shield. Radiation Protection Dosimetry, 199(2): 146-51. [DOI:10.1093/rpd/ncac249]
6. Brenner DJ (2004) Radiation risks potentially associated with low-dose CT screening of adult smokers for lung cancer. Radiology, 231(2): 440-5. [DOI:10.1148/radiol.2312030880]
7. Berrington de González A, Kim KP, Berg CD (2008) Low-dose lung computed tomography screening before age 55: estimates of the mortality reduction required to outweigh the radiation-induced cancer risk. Journal of Medical Screening, 15(3): 153-8. [DOI:10.1258/jms.2008.008052]
8. Ghetti C, Ortenzia O, Maddalo M, et al. (2020) Dosimetric and radiation cancer risk evaluation of high resolution thorax CT during COVID-19 outbreak. Physica Medica, 80: 119-24. [DOI:10.1016/j.ejmp.2020.10.018]
9. Protection R (2007) ICRP publication 103. Ann ICRP, 37(2.4): 2.
10. Council NR. Health risks from exposure to low levels of ionizing radiation: BEIR VII phase 2. 2006.
11. Sohrabi M, Parsi M, Mianji F (2018) Determination of national diagnostic reference levels in computed tomography examinations of Iran by a new quality control-based dose survey method. Radiation Protection Dosimetry, 179(3): 206-15. [DOI:10.1093/rpd/ncx252]
12. Abuzaid MM, Elshami W, El Serafi A, et al. (2020) Toward national ct diagnostic reference levels in the united arab emirates: a multicenter review of ct dose index and dose length product. Radiation Protection Dosimetry, 190(3): 243-9. [DOI:10.1093/rpd/ncaa100]
13. Tamam N, Sulieman A, Omer H, et al. (2022) Assessment of breast dose and cancer risk for young females during CT chest and abdomen examinations. Applied Radiation and Isotopes, 190: 110452. [DOI:10.1016/j.apradiso.2022.110452]
14. Lahham A, ALMasri H, Kameel S (2018) Estimation of female radiation doses and breast cancer risk from chest CT examinations. Radiation Protection Dosimetry, 179(4): 303-9. [DOI:10.1093/rpd/ncx283]
15. Tabatabaei SMH, Talari H, Gholamrezanezhad A, et al. (2020) A low-dose chest CT protocol for the diagnosis of COVID-19 pneumonia: a prospective study. Emergency Radiology, 27: 607-15. [DOI:10.1007/s10140-020-01838-6]
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Rasoulinejad F, Keshtkar M. Low cancer risk by implementing low-dose chest computed tomography protocol during Covid-19 outbreak. Int J Radiat Res 2024; 22 (2) :501-504
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Volume 22, Issue 2 (4-2024) Back to browse issues page
International Journal of Radiation Research
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