Radiation Dose from Computed Tomography Scanning in Songklanagarind Hospital : Diagnostic Reference Levels
Master of Science (Health Sciences), 2019
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Prince of Songkla University
2024
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th-psu.2016-195932024-07-26T04:02:11Z Radiation Dose from Computed Tomography Scanning in Songklanagarind Hospital : Diagnostic Reference Levels Dechen Pema Supika Kritsaneepaiboon Faculty of Medicine (Health Sciences) คณะแพทยศาสตร์ (วิทยาศาสตร์สุขภาพ) Radiation Physiological effect Radiation dosimetry Master of Science (Health Sciences), 2019 Title: Radiation dose from computed tomography scanning in Songklanagarind Hospital: Diagnostic Reference Levels Background: Computed tomography (CT), an excellent tool to assist clinicians in medical diagnosis, has seen exponential growth. There has been growing concern about the possibility of CT radiation-induced cancer. Each CT unit has been encouraged to establish their dose reference levels (DRLs) in order to optimize CT radiation dose and imaging quality. Objective: To determine CT radiation dose in terms of median and inter-quartile range of the CTDI and DLP to obtain the institute DRL for CT scans of the head, chest and abdomen for patients at Songklanagarind Hospital, Prince of Songkla University, Hat Yai. Materials and methods: A retrospective analysis of total 464 CT studies from 416 patients who underwent head, chest and abdominal CT scans in Songklanakarind Hospital from July 1st to 31st 2017. The volume CT dose index (CTDIvol), dose length product (DLP) and clinical indications were recorded. The range, mean, and third quartile values were analysed and compared to other standard international DRLs. Kruskal-Wallis rank sum test was used to evaluate significance for the above variables and clinical indications. Results: The DRLs according to our study at the CT unit of Songklanagarind Hospital were: CTDIvol of 57.50 mGy; DLP of 1102.60 mGy.cm for head CT, CTDIvol of 11.63 mGy; DLP of 474.7 mGy.cm for chest CT and CTDIvol of 13.15 mGy; DLP of 624.40 mGy.cm for abdominal CT. The most common clinical indications for CT head, chest and abdomen were stroke (29.1%), malignancy (73.6%) and malignancy (49.6%) respectively. Conclusion: These results show that the DRLs of each CT region have increased when compared to the DRLs of a limited study at Songklanagarind hospital in 2010. However, the values of our study are mostly below standard international DRLs. Royal Government of Bhutan scholarship for Bachelor's degree 2024-07-26T04:02:11Z 2024-07-26T04:02:11Z 2019 Thesis http://kb.psu.ac.th/psukb/handle/2016/19593 en Attribution-NonCommercial-NoDerivs 3.0 Thailand http://creativecommons.org/licenses/by-nc-nd/3.0/th/ application/pdf Prince of Songkla University |
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Radiation Physiological effect Radiation dosimetry |
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Radiation Physiological effect Radiation dosimetry Dechen Pema Radiation Dose from Computed Tomography Scanning in Songklanagarind Hospital : Diagnostic Reference Levels |
description |
Master of Science (Health Sciences), 2019 |
author2 |
Supika Kritsaneepaiboon |
author_facet |
Supika Kritsaneepaiboon Dechen Pema |
format |
Theses and Dissertations |
author |
Dechen Pema |
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Dechen Pema |
title |
Radiation Dose from Computed Tomography Scanning in Songklanagarind Hospital : Diagnostic Reference Levels |
title_short |
Radiation Dose from Computed Tomography Scanning in Songklanagarind Hospital : Diagnostic Reference Levels |
title_full |
Radiation Dose from Computed Tomography Scanning in Songklanagarind Hospital : Diagnostic Reference Levels |
title_fullStr |
Radiation Dose from Computed Tomography Scanning in Songklanagarind Hospital : Diagnostic Reference Levels |
title_full_unstemmed |
Radiation Dose from Computed Tomography Scanning in Songklanagarind Hospital : Diagnostic Reference Levels |
title_sort |
radiation dose from computed tomography scanning in songklanagarind hospital : diagnostic reference levels |
publisher |
Prince of Songkla University |
publishDate |
2024 |
url |
http://kb.psu.ac.th/psukb/handle/2016/19593 |
_version_ |
1806509650682576896 |