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http://dx.doi.org/10.17946/JRST.2017.40.3.03

Evaluation of Image Quality When Using Grid During Child Chest X-Ray Examination  

Jeung, Seung-Hun (Department of Radiology, SeoSan JungAng General Hospital)
Han, Beom-Hul (Department of Radiological Science, SeoNam University)
Jung, Hong-Ryang (Department of Radiological Science, Hanseo University)
Publication Information
Journal of radiological science and technology / v.40, no.3, 2017 , pp. 371-376 More about this Journal
Abstract
Since in case of children, they are sensitive to the radiation compared to the adult and the potential exposure damage lasts longer, the exposure dose should be managed better than for the adult. Therefore, this study was conducted to observe the change in the chest x-ray image by the use of grid, which eliminates the scattering rays but increases the exposure dose during the child chest x-ray examination. As a research method, SNR, CNR and V. Vuichi were measured at 100 cm and 180 cm with the grid varying the kVp to 70, 90 and 110. In addition, SNR, CNR and V. Vuichi were measured fixing 100 cm and 180cm without grid and varying the dose to 6, 8 and 10 mAs. In the results of measuring them by fixing kVp, SNR, VNR and V. Vuichi were represented high when FID is 100cm. And in the results of meaduring them varying mAs, SNR, VNR and V. Vuichi were represented high when FID is 100cm. Currently in our country, the chest x-ray examination is performed at 180 cm. However, as the image is measured high when FID is 100 cm, in case of child, FID is deemed to be 100 cm.
Keywords
Pediatric Chest examination; SNR; CNR; Grid; J.J Vucich;
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