Paediatric effective radiation doses during brain computed tomography angiography procedure

Salah, H. and Rabbaa, Mohammad and Abuljoud, Mohammad and Babikir, E. and Alkhorayef, M. and Tamam, N. and Tahir, Dahlang and Sulieman, A. and Bradley, D.A. * (2023) Paediatric effective radiation doses during brain computed tomography angiography procedure. Applied Radiation and Isotopes, 192. ISSN 0969-8043

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In comparison to adults and paediatric are more sensitive to ionizing radiation exposure. Computed tomography (CT) is now the dominant source of medical radiologic tests for patients, accounting for more than 70% of total doses to the general public. Paediatric CT brain scans (with and without contrast) are routinely performed for a variety of clinical reasons. As a result, this parameter must be calculated in order to determine relative radiation risk. The goal of this study is to assess the radiation risk to children during CT brain diagnostic procedures. Three hundred fifty three child patients’ radiation risk doses were assessed over the course of a year. The mean and ranged of the children’s radiation doses were 40.6 ± 8.8 (27.8–45.8) CTDIvol (mGy) and 850 ± 230(568.1–1126.4) DLP ( for the brain with contrast medium. For CT brain without contrast, the patients’ doses were 40.9 ± 9.4 (14.27–64.07) CTDIvol (mGy), and 866.1 ± 289.3 (203.6–2484.9) DLP ( The characteristics related to the radiation dose were retrieved from the scan protocol generated by the CT system by the participating physicians after each procedure. Furthermore, optimizing the CT acquisition parameter is critical for increasing the benefit while lowering the procedure’s radiogenic risk. The patients’ radiation dose is comparable with the most previously published studies and international diagnostic reference levels (DRLs). Radiation dose optimization is recommended due to high sensitivity of the paediatric patients to ionizing radiation.

Item Type: Article
Uncontrolled Keywords: CT brain; diagnostic radiology; paediatric imaging; radiation dosimetry; DLP; effective dose
Subjects: R Medicine > RM Therapeutics. Pharmacology
Divisions: Others > Non Sunway Academics
Sunway University > School of Engineering and Technology [formerly School of Science and Technology until 2020] > Research Centre for Applied Physics and Radiation Technologies
Depositing User: Ms Yong Yee Chan
Related URLs:
Date Deposited: 08 Jun 2023 08:59
Last Modified: 08 Jun 2023 14:12

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