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KMID : 1148920070410030185
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Nuclear Medicine and Molecular Imaging
2007 Volume.41 No. 3 p.185 ~ p.193
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Use of 18F-FDG PET/CT in Second Primary Cancer
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Choi Joon-Young
Kim Byung-Tae
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Abstract
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This review focuses on the use of 18F-FDG PET/CT to evaluate second primary cancers. The emergence of a second primary cancer is an important prognostic factor in cancer patients. The early detection of a second primary cancer and the appropriate treatment are essential for reducing the morbidity and mortality associated with these tumors. Integrated 18F-FDG PET/CT, which can provide both the metabolic and anatomic information of a cancer, has been shown to have a better accuracy in oncology than either CT or conventional PET. The whole body coverage and high sensitivity of 18F-FDG PET/CT along with its ability to provide both metabolic and anatomic information of a cancer make it suitable for evaluating a second primary cancer in oncology. Whole body 18F-FDG PET/CT is useful for screening second primary cancers with a high sensitivity and good positive predictive value. In order to rule out the presence of a second primary cancer or an unexpected metastasis, further diagnostic work-up is essential when abnormal findings indicative of a second primary cancer are found on the PET/CT images. PET/CT is better in detecting a second primary tumor than conventional PET. (Nucl Med Mol Imaging 2007;41(3):185-193)
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KEYWORD
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second primary cancer, staging, 18F-FDG, PET, PET/CT
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