PMID- 35896148 OWN - NLM STAT- MEDLINE DCOM- 20221004 LR - 20221004 IS - 1742-3406 (Electronic) IS - 0144-8420 (Linking) VI - 198 IP - 17 DP - 2022 Oct 1 TI - ESTIMATION OF PEDIATRIC DOSE DESCRIPTORS ADAPTED TO INDIVIDUAL SPECIFIC SIZE FROM CT EXAMINATIONS. PG - 1292-1302 LID - 10.1093/rpd/ncac163 [doi] AB - Clinical challenges in pediatrics dose estimation by the displayed computed tomography (CT) dose indices may lead to inaccuracy, and thus size-specific dose estimate (SSDE) is introduced for better-personalized dose estimation. This study aims to estimate pediatric dose adapted to specific size. This retrospective study involved pediatric population aged 0-12 y. SSDE was derived from scanner reported volume CT dose index (CTDIvol), based on individual effective diameter (Deff) with corresponding size correction factors. The correlations of Deff with other associated factors such as age, exposure setting, CTDIvol and SSDE were also studied. The average Deff of Malaysian pediatric was smaller than reference phantom size (confidence interval, CI = 0.28, mean = 14.79) and (CI = 0.51, mean = 16.33) for head and abdomen, respectively. These have led to underestimation of pediatric dose as SSDE was higher than displayed CTDIvol. The percentage differences were statistically significant (p < .001) ranged from 0 to 17% and 37 to 60% for head and abdominal CT, respectively. In conclusion, the clinical implementation of SSDE in pediatric CT imaging is highly relevant to reduce radiation risk. CI - (c) The Author(s) 2022. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com. FAU - Abdulkadir, Muhammad Kabir AU - Abdulkadir MK AUID- ORCID: 0000-0003-4130-2956 AD - Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, 13200 Penang, Malaysia. AD - Department of Medical Radiography, Faculty of Basic Clinical Sciences, University of Ilorin, 240213 Ilorin, Nigeria. FAU - Shuaib, Ibrahim Lutfi AU - Shuaib IL AD - Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, 13200 Penang, Malaysia. FAU - Achuthan, Anusha AU - Achuthan A AD - Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, 13200 Penang, Malaysia. AD - School of Computer Science, Universiti Sains Malaysia, Minden, 11800 Penang, Malaysia. FAU - Nasirudin, Radin A AU - Nasirudin RA AD - Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, 13200 Penang, Malaysia. FAU - Samsudin, Ahmad Hadif Zaidin AU - Samsudin AHZ AD - Department of Radiology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia. FAU - Osman, Noor Diyana AU - Osman ND AUID- ORCID: 0000-0002-3846-5116 AD - Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, 13200 Penang, Malaysia. LA - eng GR - Ministry of Education/ GR - FRGS/1/2019/STG02/USM/02/6/Fundamental Research Grant Scheme/ PT - Journal Article PL - England TA - Radiat Prot Dosimetry JT - Radiation protection dosimetry JID - 8109958 SB - IM MH - Child MH - Humans MH - *Pediatrics MH - Phantoms, Imaging MH - Radiation Dosage MH - Retrospective Studies MH - *Tomography, X-Ray Computed/methods EDAT- 2022/07/28 06:00 MHDA- 2022/10/05 06:00 CRDT- 2022/07/27 19:52 PHST- 2021/10/26 00:00 [received] PHST- 2022/06/15 00:00 [revised] PHST- 2022/07/01 00:00 [accepted] PHST- 2022/07/28 06:00 [pubmed] PHST- 2022/10/05 06:00 [medline] PHST- 2022/07/27 19:52 [entrez] AID - 6650476 [pii] AID - 10.1093/rpd/ncac163 [doi] PST - ppublish SO - Radiat Prot Dosimetry. 2022 Oct 1;198(17):1292-1302. doi: 10.1093/rpd/ncac163.