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Original Article

The Lowest Dose for CT Attenuation Correction in PET/CT

첫 페이지 보기
  • 발행기관
    대한디지털의료영상학회 바로가기
  • 간행물
    대한디지털의료영상학회논문지 바로가기
  • 통권
    Volume 13 Number 3 (2011.09)바로가기
  • 페이지
    pp.111-115
  • 저자
    Byung Sam Kang, Jin Hyun Son, Hoon Hee Park, Kyung Rae Dong
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A483015

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원문정보

초록

영어
PET/CT(Positron Emission Tomography/Computed Tomography) is an examination combining morphological and functional information in one examination. The purpose of this study is to see the lowest CT dose for attenuation correction in the PET/CT maintaining good image quality when considering CT scan dose to the patients. We injected 18F-FDG and water into the cylinder shaped phantom, and obtained emission images for 3 mins and transmission images(140 kVp, 8 sec, 10~200 mA for transmission images), and reconstructed the images to PET/CT images with Iterative method. Data(Maximum, Minimum, Average, Standard Deviation) were obtained by drawing a circular ROI(Region Of Interest) on each sphere in each image set with Image J program. And then described SD according to the CT and PEC/CT images as graphes. Through the graphes, we got the relationships of mA and quality of images. SDs according to CT graph were 16.25 at 10 mA, 7.26 at 50 mA, 5.5 at 100 mA, 4.29 at 150 mA, and 3.83 at 200 mA, i.e. the higer mA, the better image quality was presented. SDs according to PET/CT graph were 1823.2 at 10 mA, 1825.1 at 50 mA, 1828.4 at 100 mA, 1813.8 at 150 mA, and 1811.3 at 200 mA. Calculated SDs at PET/CT images were maintained. This means images quality is maintained having nothing to do with mA of high and low.

목차

Abstract
Ⅰ. Introduction
Ⅱ. Material & Method
1. Materials
2. Methods
Ⅲ. Result
1. The results of CT images
2. The results of PET/CT images
Ⅳ. Discussion and Conclusion
References

저자

  • Byung Sam Kang [ Department of Radiological Technology, Shingu University ]
  • Jin Hyun Son [ Department of Radiological Technology, Shingu University ]
  • Hoon Hee Park [ Department of Radiological Technology, Shingu University ]
  • Kyung Rae Dong [ Department of Radiological Technology, Gwangju Health College University/Department of Nuclear Engineering, Chosun University ] Corresponding Author

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    대한디지털의료영상학회 [대한디지털의료영상학]
  • 설립연도
    1995
  • 분야
    의약학>방사선과학
  • 소개
    대한디지털의료영상학회는 디지털 영상 기술에 관한 연구와 실험 결과를 임상에 적용하여 영상의학 및 진단 방사선 기술 분야의 발전에 기여함을 목적으로 한다.

간행물

  • 간행물명
    대한디지털의료영상학회논문지 [Korean Journal of Digital Imaging in Medicine]
  • 간기
    연3회
  • pISSN
    1976-7641
  • 수록기간
    1995~2026
  • 십진분류
    KDC 510 DDC 610

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