Abstract
The International Electrotechnical Commission introduced the concepts of exposure index (EI), target exposure index (EIT) and deviation index (DI) to manage and optimize patient dose in real time. In this study, we have proposed an appropriate method for setting the EIT based on the Korean national diagnostic reference levels (DRLs). Furthermore, we evaluated the use of clinical EI, EIT and DI as tools for patient dose optimization in clinical environments by observing the changes in DI with those in EIT. According to the Korean national exposure conditions, we conducted experiments on three representative radiographic examinations (chest posterior-Anterior, lateral and abdomen anterior-posterior) of clinical environments. As the exposure conditions and DRLs varied, the clinical EI, EIT and DI also varied. These results reveal that the clinical EI, EIT and DI can be used as tools for optimizing the patient dose if EIT is periodically and properly updated.
Original language | English |
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Pages (from-to) | 439-451 |
Number of pages | 13 |
Journal | Radiation Protection Dosimetry |
Volume | 191 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2020 Oct 1 |
Bibliographical note
Publisher Copyright:© 2020 The Author(s) 2020. Published by Oxford University Press. All rights reserved. For Permissions, please email: [email protected].
ASJC Scopus subject areas
- Radiological and Ultrasound Technology
- Radiation
- Radiology Nuclear Medicine and imaging
- Public Health, Environmental and Occupational Health