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Diagnostic Reference Level of Radiation Dose and Image Quality among Paediatric CT Examinations in A Tertiary Hospital in Malaysia

Pediatrics are more vulnerable to radiation and are prone to dose compared to adults, requiring more attention to computed tomography (CT) optimization. Hence, diagnostic reference levels (DRLs) have been implemented as part of optimization process in order to monitor CT dose and diagnostic quality....

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Main Authors: Muhammad, Nor Azura, Karim, Muhammad Khalis Abdul, Abu Hassan, Hasyma, Kamarudin, Mazliana Ahmad, Wong, Jeannie Hsiu Ding, Ng, Kwan Hoong
Format: Article
Published: MDPI 2020
Subjects:
R Medicine
Online Access:http://eprints.um.edu.my/36522/
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spelling my.um.eprints.365222023-12-30T16:31:54Z http://eprints.um.edu.my/36522/ Diagnostic Reference Level of Radiation Dose and Image Quality among Paediatric CT Examinations in A Tertiary Hospital in Malaysia Muhammad, Nor Azura Karim, Muhammad Khalis Abdul Abu Hassan, Hasyma Kamarudin, Mazliana Ahmad Wong, Jeannie Hsiu Ding Ng, Kwan Hoong R Medicine Pediatrics are more vulnerable to radiation and are prone to dose compared to adults, requiring more attention to computed tomography (CT) optimization. Hence, diagnostic reference levels (DRLs) have been implemented as part of optimization process in order to monitor CT dose and diagnostic quality. The noise index has recently been endorsed to be included as a part of CT optimization in the DRLs report. In this study, we have therefore set local DRLs for pediatric CT examination with a noise index as an indicator of image quality. One thousand one hundred and ninety-two (1192) paediatric patients undergoing CT brain, CT thorax and CT chest-abdomen-pelvis (CAP) examinations were analyzed retrospectively and categorized into four age groups; group 1 (0-1 year), group 2 (1-5 years), group 3 (5-10 years) and group 4 (10-15 years). For each group, data such as the volume-weighted CT dose index (CTDIvol), dose-length product (DLP) and the effective dose (E) were calculated and DRLs for each age group set at 50th percentile were determined. Both CT dose and image noise values between age groups have differed significantly withp-value < 0.05. The highest CTDI(vol)and DLP values in all age groups with the lowest noise index value reported in the 10-15 age group were found in CT brain examination. In conclusion, there was a significant variation in doses and noise intensity among children of different ages, and the need to change specific parameters to fit the clinical requirement. MDPI 2020-08 Article PeerReviewed Muhammad, Nor Azura and Karim, Muhammad Khalis Abdul and Abu Hassan, Hasyma and Kamarudin, Mazliana Ahmad and Wong, Jeannie Hsiu Ding and Ng, Kwan Hoong (2020) Diagnostic Reference Level of Radiation Dose and Image Quality among Paediatric CT Examinations in A Tertiary Hospital in Malaysia. Diagnostics, 10 (8). ISSN 20754418, DOI https://doi.org/10.3390/diagnostics10080591 <https://doi.org/10.3390/diagnostics10080591>. 10.3390/diagnostics10080591
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic R Medicine
spellingShingle R Medicine
Muhammad, Nor Azura
Karim, Muhammad Khalis Abdul
Abu Hassan, Hasyma
Kamarudin, Mazliana Ahmad
Wong, Jeannie Hsiu Ding
Ng, Kwan Hoong
Diagnostic Reference Level of Radiation Dose and Image Quality among Paediatric CT Examinations in A Tertiary Hospital in Malaysia
description Pediatrics are more vulnerable to radiation and are prone to dose compared to adults, requiring more attention to computed tomography (CT) optimization. Hence, diagnostic reference levels (DRLs) have been implemented as part of optimization process in order to monitor CT dose and diagnostic quality. The noise index has recently been endorsed to be included as a part of CT optimization in the DRLs report. In this study, we have therefore set local DRLs for pediatric CT examination with a noise index as an indicator of image quality. One thousand one hundred and ninety-two (1192) paediatric patients undergoing CT brain, CT thorax and CT chest-abdomen-pelvis (CAP) examinations were analyzed retrospectively and categorized into four age groups; group 1 (0-1 year), group 2 (1-5 years), group 3 (5-10 years) and group 4 (10-15 years). For each group, data such as the volume-weighted CT dose index (CTDIvol), dose-length product (DLP) and the effective dose (E) were calculated and DRLs for each age group set at 50th percentile were determined. Both CT dose and image noise values between age groups have differed significantly withp-value < 0.05. The highest CTDI(vol)and DLP values in all age groups with the lowest noise index value reported in the 10-15 age group were found in CT brain examination. In conclusion, there was a significant variation in doses and noise intensity among children of different ages, and the need to change specific parameters to fit the clinical requirement.
format Article
author Muhammad, Nor Azura
Karim, Muhammad Khalis Abdul
Abu Hassan, Hasyma
Kamarudin, Mazliana Ahmad
Wong, Jeannie Hsiu Ding
Ng, Kwan Hoong
author_facet Muhammad, Nor Azura
Karim, Muhammad Khalis Abdul
Abu Hassan, Hasyma
Kamarudin, Mazliana Ahmad
Wong, Jeannie Hsiu Ding
Ng, Kwan Hoong
author_sort Muhammad, Nor Azura
title Diagnostic Reference Level of Radiation Dose and Image Quality among Paediatric CT Examinations in A Tertiary Hospital in Malaysia
title_short Diagnostic Reference Level of Radiation Dose and Image Quality among Paediatric CT Examinations in A Tertiary Hospital in Malaysia
title_full Diagnostic Reference Level of Radiation Dose and Image Quality among Paediatric CT Examinations in A Tertiary Hospital in Malaysia
title_fullStr Diagnostic Reference Level of Radiation Dose and Image Quality among Paediatric CT Examinations in A Tertiary Hospital in Malaysia
title_full_unstemmed Diagnostic Reference Level of Radiation Dose and Image Quality among Paediatric CT Examinations in A Tertiary Hospital in Malaysia
title_sort diagnostic reference level of radiation dose and image quality among paediatric ct examinations in a tertiary hospital in malaysia
publisher MDPI
publishDate 2020
url http://eprints.um.edu.my/36522/
_version_ 1787133825726283776
score 13.211869

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