Nuclear Medicine and Molecular Imaging

The Korean Society of Nuclear Medicine (대한핵의학회)
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Physical Artifact Correction in Nuclear Medicine Imaging: Normalization and Attenuation Correction

핵의학 영상의 물리적 인공산물보정: 정규화보정 및 감쇠보정

  • Kim, Jin-Su (Molecular Imaging Research Center, Korea Institute of Radiological and Medical Sciences) ;
  • Lee, Jae-Sung (Interdisciplinary programs in Radiation Applied Life Science major, Seoul National University) ;
  • Cheon, Gi-Jeong (Molecular Imaging Research Center, Korea Institute of Radiological and Medical Sciences)
  • 김진수 (한국원자력의학원 분자영상연구부) ;
  • 이재성 (서울대학교 방사선응용생명과학협동과정) ;
  • 천기정 (한국원자력의학원 분자영상연구부)
  • Published : 2008.04.30
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Abstract

Artifact corrections including normalization and attenuation correction were important for quantitative analysis in Nuclear Medicine Imaging. Normalization is the process of ensuring that all lines of response joining detectors in coincidence have the same effective sensitivity. Failure to account for variations in LOR sensitivity leads to bias and high-frequency artifacts in the reconstructed images. Attenuation correction is the process of the correction of attenuation phenomenon lies in the natural property that photons emitted by the radiopharmaceutical will interact with tissue and other materials as they pass through the body. In this paper, we will review the several approaches for normalization and attenuation correction strategies.

Keywords

References

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