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http://dx.doi.org/10.17946/JRST.2017.40.1.01

Analysis of Image Quality According to BMI of Digital Chest Radiography: Focusing on Bureau of Radiological Health Evaluation  

Jin, Seong-jin (Gammaknife center, Inje University Haeundae Paik Hospital)
Im, In-Chul (Department of Radiological Science, Dongeui University)
Cho, Ji-Hwan (Department of Health Care Clinic, Inje University Busan Paik Hospital)
Publication Information
Journal of radiological science and technology / v.40, no.1, 2017 , pp. 1-6 More about this Journal
Abstract
Visual evaluation of chest radiograph images is the most practical and effective method. This study compared the Body Mass Index, waist circumference, and mAs with chest radiographs of 351 women. The Bureau of Radiological Health method was used to evaluate the image quality of chest X-ray images by anatomical and physical methods. The average age of the subjects was $30.17{\pm}4.73$ and the average waist circumference was $66.91{\pm}4.67cm$. The mean Body Mass Index value was $20.21{\pm}2.23$, the mean value of mAs was $3.04{\pm}0.78$, and the mean value of Bureau of Radiological Health was $79.83{\pm}8.45$. When the Body Mass Index value increased, waist circumference and mAs mean value increased. The mean value of Body Mass Index was statistically significant(p<0.05) in Group 4 compared to Groups 1 and 2, with increasing Body Mass Index. Exposure control of the automatic exposure control system is considered to be well performed according to body thickness or Body Mass Index at the time of chest radiography. As the Body Mass Index increases, the thickness of the body increases and the breast thickness of the woman also increases. Therefore, it is considered that the exposure amount is changed by the automatic exposure control device to affect the image quality.
Keywords
Chest radiography; Body Mass Index(BMI); mAs; Bureau of Radiological Health(BRH); Image quality;
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