Patients and clinicians often raise concerns about radiation exposure to various
organs during computerized tomography-based imaging. We evaluated radiation
exposure during standard and low-dose imaging protocols for non-contrast
computerized tomography, computerized tomography angiography and computerized
tomography perfusion of the head. Whether reducing the radiation dose affected
the image quality was also evaluated. Radiation data were retrieved for
computerized tomography-based imaging studies performed for acute ischemic stroke
patients during 2015. The volume-weighted computerized tomography dose index,
dose-length product, scan length, effective dose and whole-body integral dose for
brain, skin, eye, thyroid and red bone marrow were extracted from dose-tracking
software. Dose metrics for low-dose protocols data were compared with standard
protocols. The calculated effective doses for non-contrast computerized
tomography, computerized tomography angiography and computerized tomography
perfusion were 2.56
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Original Research
Radiation exposure during computerized tomography-based neuroimaging for acute ischemic stroke: a case-control study
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1
Department of Diagnostic Imaging, National University Health System, 119228 Singapore, Singapore
2
Division of Neurology, National University Health System, 119228 Singapore, Singapore
3
YongLoo Lin School of Medicine, National University of Singapore, 119077 Singapore, Singapore
*Correspondence: mdcvks@nus.edu.sg (Vijay K Sharma)
J. Integr. Neurosci. 2021, 20(3), 605–611;
https://doi.org/10.31083/j.jin2003064
Submitted: 4 May 2021 | Revised: 11 June 2021 | Accepted: 30 June 2021 | Published: 30 September 2021
Copyright: © 2021 The Author(s). Published by IMR Press.
This is an open access article under the CC BY 4.0 license (https://creativecommons.org/licenses/by/4.0/).
Abstract
Keywords
Neuroimaging
Acute ischemic stroke
Radiation
Radiation dose
Computerized tomography
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