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KMID : 1151820150090040219
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Journal of the Korean Society of Radiology
2015 Volume.9 No. 4 p.219 ~ p.225
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Evaluation of Image Quality according to the Use of Attachable X-ray Table Equipped with Heating Device
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Song Jong-Nam
Kim Eung-Kon
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Abstract
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This study aims to evaluates the image quality of CR and DR that are scanned with the use of the attachable carbon heater X-ray scanner table equipped with heating device by measuring SNR and CNR before and after the attachment of the said table. In the aluminum staircase testing, CR increased SNR and CNR when attached with the table, while DR decreased SNR and CNR. In the human-body model phantom testing, CR increased SNR and CNR only in the low-energy low-dose radiation and the high-energy high-dose radiation, but decreased SNR and CNR under all other conditions. In conclusion, the use of such table can make the patient feel comfortable by removing his or her anxiety, thus helping the testing, but in the actual clinical application thereof, if the thickness and material of the bottom film and the protective film, including the carbon heater, are not considered, it affects the picture quality, thereby requiring continuous research on the use of such table.
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KEYWORD
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X-ray Table, SNR (signal to noise ratio), CNR (contrast to noise ratio)
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