The Korean Journal of Nuclear Medicine Technology (핵의학기술)
- Volume 13 Issue 1
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- Pages.63-66
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- 2009
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- 1229-9901(pISSN)
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- 2982-8406(eISSN)
Usefulness Assessment of Automatic Analysis Program for Flangeless Esser PET Phantom Images
Flangeless Esser PET Phantom 영상 자동 분석 프로그램의 유용성 평가
- NamGung, Chang-Kyeong (Department of Nuclear Medcine, Asan Medical Center) ;
- Nam, Ki-Pyo (Department of Nuclear Medcine, Asan Medical Center) ;
- Kim, Kyeong-Sik (Department of Nuclear Medcine, Asan Medical Center) ;
- Kim, Jeong-Seon (Department of Nuclear Medcine, Asan Medical Center) ;
- Lim, Ki-Cheon (Department of Nuclear Medcine, Asan Medical Center) ;
- Shin, Sang-Ki (Department of Nuclear Medcine, Asan Medical Center) ;
- Cho, Shee-Man (Department of Nuclear Medcine, Asan Medical Center) ;
- Dong, Kyung-Rae (Department of Radiological Technology1, Gwangju Health College University)
- 남궁창경 (서울아산병원 핵의학팀) ;
- 남기표 (서울아산병원 핵의학팀) ;
- 김경식 (서울아산병원 핵의학팀) ;
- 김정선 (서울아산병원 핵의학팀) ;
- 임기천 (서울아산병원 핵의학팀) ;
- 신상기 (서울아산병원 핵의학팀) ;
- 조시만 (서울아산병원 핵의학팀) ;
- 동경래 (광주보건대학 방사선과)
- Received : 2009.03.11
- Accepted : 2009.04.02
- Published : 2009.05.11
Abstract
Purpose: ACR (American College of Radiology) offers variable parameters to PET/CT quality control by using ACR Phantom. ACR Phantom was made to evaluate parameters which are uniformity, attenuation, scatter, contrast and resolution. Manual analysis method wasn't good for the use of QC because values of parameter were changed as it may user and it takes long time to analysis. Ki-Chun Lim, a nuclear scientist in AMC, developed program that automatically analysis values of parameter by using ACR Phantom to overcome above problems. In this study, we evaluated automatic analysis program's usability, through the comparing SUV of each method, reproducibility of SUV when repeated analysis and the time required. Materials and Methods: Using Flangeless Esser PET Phantom, the ideal ratio of 4 : 1 hot cylinder and BKG but it actually showed a ratio of 3.89 to 1 hot cylinder and BKG. SIEMENS Biograph True Point 40 was used in this study. We obtained images using ACR phantom at Fusion WB PET Scan condition (2 min/bed) and 120 kV, 100 mAs CT condition. Using True X method, 3 iterations, 14 subsets, Gaussian filter, FWHM 4 mm and Zoom Factor 1.0,