PET/CT검사에서 Dose Modulation Technic 적용시 BMI에 따른 선량 감소율 분석

• 영문명: Analysis of Dose Reduction Rate with Dose Modulation Technic Depending on BMI
• 발행기관: 대한핵의학기술학회
• 저자명: 김정욱(Jung Wook Kim) 박세윤(Se Yun Park) 조영준(Young Jun Jo) 박종엽(Jong Yeop Park)
• 간행물 정보: 『핵의학기술』Vol.16 No.2, 25~28쪽, 전체 4쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2012.10.30

영문 초록

Purpose : It is important to reduce radiation dose associated with computed tomography (CT) scanning to as low as reasonably achievable (ALARA). With Dose Modulation Technic, user select a desired image quality and the system adapts tube current to obtain the desired image quality with greater radiation dose efficiency. In this paper, we presents a comprehensive description of fundamentals, clinical applications and radiation dose benefits of Dose Modulation Technic depending on Body Mass Index(BMI). Materials and Methods : In this study, 149 patients were examined(The mean age : 58±12.4 years old). Biograph True Point 40 (Siemens, USA) and Gemini TF 64 (Philips. Cleveland) were used for equipment. When we used Care Dose 4D (Siemens, USA) and D-dom (Philips, Cleveland), we measured dose reduction and Computed Tomography Dose Index (CTDI) depending on BMI. Then we analyze data using SPSS Ver.18. Results : When we used Care Dose 4D, p-value is considered statistically significant by groups with the result that we compared Care Dose 4D with D-dom. On the other hand, p-value isn't considered statistically significant by groups using D-dom. Conclusion : Dose modulation based on the projection angle didn't affect degree of obesity. And When using Care Dose 4D, dose reduction rate in the normal patients were higher than the obese. In this study, there are errors on somato type. So I think more research have to be done. Then application of Dose Modulation technic can help in maintaining acceptable image quality while reducing radiation dose by 20-60% in most instances.

목차

서론

실험재료 및 방법

결과

고찰 및 결론

요약

REFERENCES

키워드

PET/CT Dose Modulation BMI