유방암에서 18F-FDG PET/CT의 pSUV와 병리학적 진단과의 연관성
Relationship Between pSUV of 18F-FDG PET/CT and Pathological Diagnosis in Breast Cancer
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이 연구는 18F-FDG PET/CT의 SUV에 영향을 미치는 병리학적 요인들을 알아보는 것이다. 2012년 09월부터 2013년 07월까지 한 대학병원에서 유방암으로 진단되어 18F-FDG PET/CT를 시행하고 외과적 수술을 받은 39명을 대상으로 하여, pSUV와 종양크기, 조직학적 등급, 핵등급, 호르몬 수용체와 C-erbB-2의 발현 상태 간의 관계를 분석하였다. 연구결과 종양의 크기가 클수록 pSUV가 높은 것으로 나타났으나 크기에 따른 통계적 유의성은 없는 것으로 나타났다. 조직학적 등급은 고등급의 pSUV가 더 높은 것으로 나타났으며 유의한 양의 상관관계가 있었다. ER( estrogen receptor ), PR( progesteron receptor )은 양성에 비해 음성의 pSUV가 더 높았으며 유의한 음의 상관관계가 있었다. 유방암에서 18F-FDG PET/CT의 pSUV는 조직학적 등급, ER과 PR과 상관관계가 있었다. 따라서 유방암 초기진단에 있어 18F-FDG PET/CT를 이용한다면 조직검사나 수술을 통해 얻을 수 있는 조직학적 정보를 수술 전에 예측하여 치료방향에 도움을 줄 수 있을 것으로 생각된다.
Abstract
The purpose of this study was to evaluate the Pathological Diagnosis associated with pSUV uptake of 18F-FDG PET/CT. We had enrolled 39 women that underwent 18F-FDG PET/CT before operative. We evaluated whether there was correlation between the pSUV of 18F-FDG PET/CT and prognostic factors. As a results, pSUV level increase according to tumor size but pSUV had no significant association with tumor size. pSUV of high histologic grade was higher than low histologic grade, and pSUV showed positive correlations with histologic grade. The ER and PR showed significant negative correlations with the pSUV of 18F-FDG PET/CT. Therefore, our results demonstrated that an correlation exists between pSUV and prognostic factors such as histologic grade, ER and PR.
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