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Risk Estimation of Thyroid Cancer for Children Undergoing Brain CT Examinations | ||
| Middle East Journal of Cancer | ||
| مقاله 16، دوره 13، شماره 1 - شماره پیاپی 49، فروردین 2022، صفحه 143-149 اصل مقاله (131.02 K) | ||
| نوع مقاله: Original Article(s) | ||
| شناسه دیجیتال (DOI): 10.30476/mejc.2021.85833.1306 | ||
| نویسندگان | ||
| Morteza Majidi Ata1؛ Abbas Moradi2؛ Farideh Gharekhanloo3؛ Safoora Nikzad* 4 | ||
| 1School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran | ||
| 2Department of Social Medicine, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran | ||
| 3Department of Radiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran | ||
| 4Department of Medical Physics, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran | ||
| چکیده | ||
| Background: Despite significant diagnosis benefits, the usage of ionizing radiation is not risk-free. The aim of this study was to determine the risk of thyroid cancer for children who exposed to brain computed tomography (CT) scan. Method: In this cross-sectional study, 90 patients under 20 years of age who underwent brain CT-scan were selected. Parameters such as age, sex, imaging technique, imaging characteristics, and thyroid absorbed dose were considered. We used SPSS software, version 21, at 95% confidence interval to analyze the absorbed dose and risk for each individual. Results: The mean and standard deviation of absorbed doses for girls and boys for the spiral technique were 3.954±0.393 and 4.72±0.000 mGy, and in sequential technique, were 2.282±0.461 and 1.985±0.431 mGy, respectively. The mean and standard deviation of the absorbed doses in <5 years age group were 5.65±2.00, 3.03±1.34 in 6 to 10 years, 2.63±0.98 in 11 to 15 years, and in 16 to 20 years were 2.57±1.04 mGy (P < 0.001). There was a significant negative correlation between the absorbed dose and field dimensions (r = -0.604, P < 0.001) and slice thickness (r = -0.777, P < 0.001). The mean and standard deviation of Lifetime risk for thyroid cancer induction (×105) in <5 years age group in spiral technique was 158.79±322.50 for female subjects and 16.5±42.90 for male patients, which was significantly more than those of other groups and techniques (P < 0.001). Conclusion: The rate of thyroid absorbed dose during brain CT-scan was found to be noticeable, especially in spiral CT imaging, for female patients < 5 years. Based on our results, it was associated with an increased risk of thyroid cancer in this age group. | ||
| کلیدواژه‌ها | ||
| Computed tomography؛ Thyroid dose؛ Cancer risk؛ Children | ||
| اصل مقاله | ||
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How to cite this article: Majidi Ata M, Moradi A, Gharekhanloo F, Nikzad S. Risk estimation of thyroid cancer for children undergoing brain CT examinations. Middle East J Cancer. 2022;13(1):143-9. doi: 10.30476/mejc.2021.85833.1306. | ||
| مراجع | ||
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