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연구논문(2)

컴퓨터 방사선영상에서 고 관전압 기법을 이용한 안구 입사표면선량 감소에 관한 연구

원문정보

A Study on Reducing of Entrance Surface Dose with the Eye in the Computed Radiography by Using High Kilo Voltage Peak Technique

성열훈, 임재동

피인용수 : 0(자료제공 : 네이버학술정보)

초록

영어

The purpose of this study was to minimize of entrance surface dose (ESD) at the eye using high kVp technique in the computed radiography. We used REX-650R (Listem, Korea) general X-ray unit, and external detector with ESD dosimeter of Piranha 657 (RTI Electronics, Sweden). We used head of the whole body phantom. The total 64 images of X-ray anterior-posterior of skull were acquired using the film/screen (F/S) method and the digital of computed radiography method. The three radiology professor of more 10 years of clinical career evaluated a X-rays images in the same space by 5-point scale. The external detector was performed measurement of ESD of three times by same condition on the eye of the head phantom. The good image quality in the F/S method (90 kVp, 2.5 mAs) showed at the minimized ESD of 0.310 ± 0.001 mGy. the good image quality in the computed radiography method (90 kVp, 2.0 mAs) showed at the minimized ESD of 0.180 ± 0.002 mGy (P = 0.002). Finally the radiation dose could reduced about 50% in the computed radiography method more than the F/S method. In addition the eye entrance surface dose using high kVp technique with the computed radiography was reduced 92% more than conventional technique (F/S method).

목차

Abstract
 1. 서론
 2. 실험장비 및 방법
  2.1 실험장비
  2.2 실험방법
 3. 결과
  3.1 영상품질 평가
  3.2 입사표면선량 평가
 4. 결론 및 토의
 5. 참고문헌

저자정보

  • 성열훈 Youl-Hun Seoung. 청주대학교 방사선학과
  • 임재동 Jea-Dong Rhim. 대원대학 방사선과

참고문헌

자료제공 : 네이버학술정보

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