A1 Refereed original research article in a scientific journal
Dose monitoring in pediatric and young adult head and cervical spine CT studies at two emergency duty departments
Authors: Hannele Niiniviita, Timo Kiljunen, Minna Huuskonen, Simo Teperi, Jarmo Kulmala
Publication year: 2018
Journal: Emergency Radiology
Journal name in source: Emergency radiology
Journal acronym: Emerg Radiol
Volume: 25
Issue: 2
First page : 153
Last page: 159
Number of pages: 7
ISSN: 1438-1435
DOI: https://doi.org/10.1007/s10140-017-1571-x
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/28553689
Purpose
As the number of pediatric computed tomography (CT) imaging is increasing, there is a need for real-time radiation dose monitoring and evaluation of the imaging protocols. The aim of this study was to present the imaging data, patient doses, and observations of pediatric and young adult trauma—and routine head CT and cervical spine CT collected by a dose monitoring software.
MethodsPatient age, study date, imaging parameters, and patient dose as volume CT dose index (CTDIvol) and dose length product (DLP) were collected from two emergency departments’ CT scanners for 2-year period. The patients were divided into four age groups (0–5, 6–10, 11–15, and 16–20 years) for statistical analysis and effective dose determination. The 75th percentile doses were evaluated to be used as local diagnostic reference levels (DRLs).
ResultsSix hundred fifteen trauma head, 318 routine head, and 592 trauma cervical spine CT studies were assessed. All mean CTDIvol values were statistically lower in hospital B (40.3 ± 12.3, 30.03 ± 11.1, and 6.9 ± 3.1 mGy, respectively) than in hospital A (53.0 ± 12.9, 43.2 ± 8.7, and 18.3 ± 7.3 mGy, respectively). Statistically significant differences were observed on scanning length between hospitals and between CTDIvol values when protocol was updated. The 75th percentiles of trauma cervical spine in hospital B can be used as local DRL. Non-optimized protocols were also revealed in hospital A.
ConclusionDose monitoring software offers a valuable tool for evaluating the imaging practices and finding non-optimized protocols.
Downloadable publication This is an electronic reprint of the original article. |