PMID- 38035439 OWN - NLM STAT- MEDLINE DCOM- 20240115 LR - 20240115 IS - 1532-2831 (Electronic) IS - 1078-8174 (Linking) VI - 30 IP - 1 DP - 2024 Jan TI - Evaluation of a new predictive equation for automated calculation of size-specific dose estimate (SSDE) in CT imaging. PG - 237-244 LID - S1078-8174(23)00228-6 [pii] LID - 10.1016/j.radi.2023.11.012 [doi] AB - INTRODUCTION: The adoption of size-specific dose estimate (SSDE) in clinical practice is still limited owing to the tedious and complex manual measurement of individual patient size for the clinical calculation of SSDE. Thus, the automation of SSDE is imperative. This study aims to evaluate a predictive equation for the automated calculation of SSDE. METHODS: A user-friendly software was developed to accurately predict the individual size-specific dose estimation of paediatric patients undergoing computed tomography (CT) scans of the head, thorax, and abdomen. The software includes a calculation equation developed based on a novel SSDE prediction equation that used a population's pre-determined percentage difference between volume-weighted computed tomography dose index (CTDI(vol)) and SSDE with age. American Association of Physicists in Medicine (AAPM RPT 204) method (manual) and segmentation-based SSDE calculators (indoseCT and XXautocalc) were used to assess the proposed software predictions comparatively. RESULTS: The results of this study show that the automated equation-based calculation of SSDE and the manual and segmentation-based calculation of SSDE are in good agreement for patients. The differences between the automated equation-based calculation of SSDE and the manual and segmentation-based calculation are less than 3%. CONCLUSION: This study validated an accurate SSDE calculator that allows users to enter key input values and calculate SSDE. IMPLICATION FOR PRACTICE: The automated equation-based SSDE software (PESSD) seems a promising tool for estimating individualised CT doses during CT scans. CI - Copyright (c) 2023 The College of Radiographers. Published by Elsevier Ltd. All rights reserved. FAU - Osman, N D AU - Osman ND AD - Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, 13200, Penang, Malaysia. FAU - Abdulkadir, M K AU - Abdulkadir MK AD - Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, 13200, Penang, Malaysia; Department of Radiography, Faculty of Basic Clinical Sciences, University of Ilorin, 240213 Ilorin, Nigeria. Electronic address: Kabirkad@yahoo.com. FAU - Shuaib, I L AU - Shuaib IL AD - Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, 13200, Penang, Malaysia. FAU - Nasirudin, R A AU - Nasirudin RA AD - Department of Radiography, Faculty of Basic Clinical Sciences, University of Ilorin, 240213 Ilorin, Nigeria. LA - eng PT - Journal Article DEP - 20231129 PL - Netherlands TA - Radiography (Lond) JT - Radiography (London, England : 1995) JID - 9604102 SB - IM MH - Humans MH - Child MH - Radiation Dosage MH - *Tomography, X-Ray Computed/methods MH - *Abdomen MH - Software MH - Thorax OTO - NOTNLM OT - Computed tomography OT - Dose optimisation OT - Effective diameter OT - Size-specific dose OT - Software COIS- Conflict of interest statement None. EDAT- 2023/12/01 00:43 MHDA- 2024/01/15 12:42 CRDT- 2023/11/30 18:01 PHST- 2023/06/30 00:00 [received] PHST- 2023/11/04 00:00 [revised] PHST- 2023/11/13 00:00 [accepted] PHST- 2024/01/15 12:42 [medline] PHST- 2023/12/01 00:43 [pubmed] PHST- 2023/11/30 18:01 [entrez] AID - S1078-8174(23)00228-6 [pii] AID - 10.1016/j.radi.2023.11.012 [doi] PST - ppublish SO - Radiography (Lond). 2024 Jan;30(1):237-244. doi: 10.1016/j.radi.2023.11.012. Epub 2023 Nov 29.