Journal of radiological science and technology (대한방사선기술학회지:방사선기술과학)
- Volume 17 Issue 2
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- Pages.29-35
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- 1994
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- 2288-3509(pISSN)
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- 2384-1168(eISSN)
A Study on Reduction of Exposure Dose in Tomography of the Chest
흉부단층촬영시(胸部斷層撮影時) 피폭선량(被曝線量)의 저감(低減)에 관(關)한 연구(硏究)
- Lino, Yu (Institute of Chemotherapy) ;
- Lee, Man-Koo (Dept, of Radiotechnology, The Chemotherapy Institute Hospital) ;
- Hayashi, Taro (Dept, of Radiotechnology, The Chemotherapy Institute Hospital) ;
- Ishida, Yuji (Dept, of Radiotechnology, The Chemotherapy Institute Hospital) ;
- Maeda, Mika (Dept, of Radiotechnology, The Chemotherapy Institute Hospital) ;
- Sakurai, Tatsuya (Dept, of Radiotechnology, The Chemotherapy Institute Hospital) ;
- Park, Yong-Hee (Dept, of Radiotechnology, The Chemotherapy Institute Hospital) ;
- Kim, Chang-Nam (Dept, of Radiotechnology, The Chemotherapy Institute Hospital) ;
- Shin, Tong-Sik (Dept, of Radiotechnology, The Chemotherapy Institute Hospital)
- 반야유 (일본 화학요법연구소) ;
- 이만구 (일본 화학요법연구소 부속병원 방사선실) ;
- 임태랑 (일본 화학요법연구소 부속병원 방사선실) ;
- 석전유치 (일본 화학요법연구소 부속병원 방사선실) ;
- 전전미향 (일본 화학요법연구소 부속병원 방사선실) ;
- 앵정달야 (일본 화학요법연구소 부속병원 방사선실) ;
- 박영희 (일본 화학요법연구소 부속병원 방사선실) ;
- 김창남 (일본 화학요법연구소 부속병원 방사선실) ;
- 신동식 (일본 화학요법연구소 부속병원 방사선실)
- Published : 1994.12.15
Abstract
Tomographic examination requires several times of exposure usually, therefore, reduction of radiation dose per exposure without loss of image quality proves of great benefit to patient. We compared the exposure doses under the following experimental conditions, A and B. A is the combination of SRO 380(rare earth screen) and SRH(high contrast film) with additional Cu filters or without. B is the widely used combination which is BH-III and Cronex-4 without additional filter. As a result, comparing with the condition B, the condition A with additional filter of Cu 0.15 mm + Al 0.7 mm, Cu 0.4 mm+ Al 0.4 mm and Cu 0.8 mm showed better Image quality and lower surface dose, 44 %, 31 % and 24 % of the condition B, respectively.
Keywords