TY - JOUR
T1 - FEASIBILITY of DISPLAYED EXPOSURE INDEX in IEC STANDARD FRAMEWORK AS A DOSE OPTIMISATION TOOL for DIGITAL RADIOGRAPHY SYSTEMS
AU - Park, Hyemin
AU - Yoon, Yongsu
AU - Tanaka, Nobukazu
AU - Kim, Jungsu
AU - Kim, Jungmin
AU - Morishita, Junji
N1 - Funding Information:
This work was supported by Korea University (K1808581). The authors thank Professor Dr. Toshioh Fujibuchi (Department of Health Sciences, Faculty of Medical Sciences, Kyushu University) and Professor Dr. Hoiwoun Jeong (Department of Radiologic Science, Baekseok Culture University) for useful discussions and comments on this study.
Publisher Copyright:
© The Author(s) 2020.
PY - 2020/5/1
Y1 - 2020/5/1
N2 - International Electrotechnical Commission (IEC) established the framework for the use of exposure index (EI) for evaluating the exposure conditions with various digital systems. In this study, we investigated the feasibility of EI, as per the IEC, by comparing the EIs obtained through manual calculated and that displayed on the console of two computed radiography (CR) and digital radiography (DR) systems with radiation beam qualities of RQA3,5,7 and 9. As a result, both two systems indicated an uncertainty of less than 20% for both calculated and displayed EI with all beam qualities except displayed EI obtained by RQA3. However, the displayed EI values were different even under the same exposure conditions because of the characteristics of the imaging receptor materials, such as BaFI or CsI, of two systems. Therefore, when an operator attempts to introduce displayed EI for managing radiation dose, it is essential to understand the characteristics of the digital system.
AB - International Electrotechnical Commission (IEC) established the framework for the use of exposure index (EI) for evaluating the exposure conditions with various digital systems. In this study, we investigated the feasibility of EI, as per the IEC, by comparing the EIs obtained through manual calculated and that displayed on the console of two computed radiography (CR) and digital radiography (DR) systems with radiation beam qualities of RQA3,5,7 and 9. As a result, both two systems indicated an uncertainty of less than 20% for both calculated and displayed EI with all beam qualities except displayed EI obtained by RQA3. However, the displayed EI values were different even under the same exposure conditions because of the characteristics of the imaging receptor materials, such as BaFI or CsI, of two systems. Therefore, when an operator attempts to introduce displayed EI for managing radiation dose, it is essential to understand the characteristics of the digital system.
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U2 - 10.1093/rpd/ncaa052
DO - 10.1093/rpd/ncaa052
M3 - Article
C2 - 32364600
AN - SCOPUS:85088351395
SN - 0144-8420
VL - 189
SP - 384
EP - 394
JO - Radiation Protection Dosimetry
JF - Radiation Protection Dosimetry
IS - 3
ER -
