The Korean Journal of Nuclear Medicine Technology (핵의학기술)
- Volume 19 Issue 1
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- Pages.51-56
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- 2015
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- 1229-9901(pISSN)
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- 2982-8406(eISSN)
A Comparative Analysis According to a Presence or Absence of Metal Artifacts when a Dose Change and QAC Technique are Applied in PET/CT Tests
PET/CT 검사에서 선량변화와 QAC기법 적용 시 Metal Artifact 유무에 따른 SUV 비교분석
- Yun, Sun-Hee (Department of Nuclear Medicine, Seoul St. Mary's Hospital, Catholic Medical Center) ;
- Kim, Yang-Jung (GE Healthcare Korea) ;
- Kang, Young-Jik (Department of Nuclear Medicine, Seoul St. Mary's Hospital, Catholic Medical Center) ;
- Park, Su-Young (Department of Nuclear Medicine, Seoul St. Mary's Hospital, Catholic Medical Center) ;
- Kim, Ho-Sin (Department of Nuclear Medicine, Seoul St. Mary's Hospital, Catholic Medical Center) ;
- Ryu, Hyoung-Ki (Department of Nuclear Medicine, Seoul St. Mary's Hospital, Catholic Medical Center)
- 윤선희 (가톨릭대학교 서울성모병원) ;
- 김양중 ;
- 강영직 (가톨릭대학교 서울성모병원) ;
- 박수영 (가톨릭대학교 서울성모병원) ;
- 김호신 (가톨릭대학교 서울성모병원) ;
- 류형기 (가톨릭대학교 서울성모병원)
- Received : 2015.04.03
- Accepted : 2015.04.30
- Published : 2015.05.16
Abstract
Purpose As medical radiation exposures on patients are being social issues an interest in a relief of radiation exposures on patients is increasing. Further, there are many cases where some patients among who are getting PET/CT tests choose to get implanted with metal artifacts in their bodies. This study is to find out effects of presence or absence of metal artifacts when dose change or CT attenuation correction for the relief of radiation exposures are applied using phantoms through changes in standard uptake value (SUV). Materials and Methods GE company's Discovery 710 machine was used for PET/CT test equipments. We used NEMA IEC body phantoms. We also used screw and mesh cage made of titanium which are used in real clinical processes for the metal artifacts. Two experiments were conducted: One is to test and measure repeatedly about SUV about differences in CT attenuation corrections according to dose changes and another is to do the same procedure for SUV about the presence and absence of the metal artifacts. We injected