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KMID : 0357520200430020115
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Journal of Radiological Science and Technology
2020 Volume.43 No. 2 p.115 ~ p.121
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A Study on Quality Control for Medical Image by Using Deviation Index of Digital Radiology
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Jeong Hoi-Woun
Min Jung-Whan
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Abstract
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In a digital radiation system using a Flat Panel Detector, we attempted to the quality control of digital radiography system using the Exposure Index and Deviation Index. Calibration was performed with the radiation quality suggested by the International Electrotechnical Commission, and through an experiment using a phantom, appropriate inspection radiation conditions applicable to medical institutions were selected. The study was conducted using the selected radiation conditions. Through those chest posterior anterior image, information such as examination conditions and exposure index was obtained. The deviation index was derived by analyzing the exposure index based on the target exposure index calculated by the phantom study. As for the analyzed exposure index, 97.1% was distributed within the range of ± 2.0 based on the deviation index. Quality control of medical images should be performed through management of inspection conditions through exposure index and deviation index and management of medical images.
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KEYWORD
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Digital radiography system , Flat Panel Detector , Exposure Index , Deviation Inedx , Target Exposure Index
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