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Evaluation of Image Quality according to the Use of Attachable X-ray Table Equipped with Heating Device

가열장치를 구비한 부착형 X선 촬영대의 사용에 따른 화질 평가

  • Song, Jongnam (Dept. of Computer Engineering, Sunchon National University) ;
  • Kim, Eungkon (Dept. of Computer Engineering, Sunchon National University)
  • Received : 2015.04.30
  • Accepted : 2015.06.25
  • Published : 2015.06.30

Abstract

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.

본 연구의 목적은 CR과 DR에서 가열장치를 구비한 부착형 탄소발열체 X선 촬영대의 사용에 따른 SNR과 CNR을 측정하여 부착 전과 부착 후의 화질을 평가하고자 한다. 알루미늄 계단 실험에서 CR은 부착 후에 SNR과 CNR이 증가하였지만 DR에서는 SNR과 CNR이 감소하였다. 인체모형팬텀 실험에서는 CR의 경우에 저에너지 저선량과 고에너지 고선량에서만 SNR과 CNR이 증가하였지만 다른 모든 조건에서는 SNR과 CNR이 감소하였다. 결론적으로 환자에게 온화한 느낌과 안전감을 제공하고 심적인 불안감을 해소하여 검사에 도움을 줄 수 있지만 임상적용에 있어서는 탄소발열체를 포함한 바닥필름과 보호필름의 두께와 재질을 고려하지 않으면 화질에 영향이 주기 때문에 향후 지속적인 연구가 필요하다고 사료된다.

Keywords

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