AUTOMATED ESTIMATION OF PATIENT'S SIZE USING AUTOWED TOOL AND INDOSECT PROGRAM: A DOSIMETRIC STUDY FOR PAEDIATRIC HEAD CT EXAMINATIONS.

Autor:	Saeed MK; Faculty of Applied Medical Sciences, Najran University, Najran, Saudi Arabia., Alshamrani HA; Faculty of Applied Medical Sciences, Najran University, Najran, Saudi Arabia., Sulieman A; Prince Sattam bin Abdulaziz University, Alkharj, Saudi Arabia., Abdullah YM; Applied Sciences College, Al-Majmaah University, Riyadh, Saudi Arabia., Yousef M; Batterjee Medical College, Jeddah, Saudi Arabia., Ali ASAM; Faculty of Science and Technology, Al Neelain University, Khartoum, Sudan., Alshamrani KA; Faculty of Applied Medical Sciences, Najran University, Najran, Saudi Arabia.
Jazyk:	angličtina
Zdroj:	Radiation protection dosimetry [Radiat Prot Dosimetry] 2022 Sep 22; Vol. 198 (16), pp. 1238-1243.
DOI:	10.1093/rpd/ncac164
Abstrakt:	Size-specific dose estimate (SSDE), which can be calculated by measuring the effective diameter (De) or water equivalent diameter (Dw) of the patient, is one of the recent approaches for verifying the individual doses during computer tomography (CT) examinations. This work aimed to compare the Dw estimated by the AutoWED tool and IndoseCT software and to investigate CT axial (ARH) and paediatric head (PH) protocols used in southern Saudi Arabia to calculate the dose received by paediatric patients using metrics of volume CT dose index (CTDIvol) and SSDE. The distribution between the ARH and PH protocols was 57.8 and 42.2%, respectively. There was no significant difference in Dw values between the AutoWED tool and the IndoseCT program (0.13%). Including CT table or other objects during estimation of Dw can lead to variation up to 11.4%. The impact of selecting IndoseCT options to identify the border of the patient may be part of the explanation for these variations. A strong linear relationship was obtained between De and Dw in paediatric head size (R2 = 0.96). Using IndoseCT, for 0-1.5, 1.5-5 and 5.0-18 age groups (years), the Dw was found to be 13.2, 15.3 and 16.8 cm, respectively. The SSDE for the PH protocol was substantially lower than that of the ARH protocol. As a result, education of the individuals engaging in paediatric CT examinations is necessary for dose optimization. (© The Author(s) 2022. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.)
Databáze:	MEDLINE
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