R. Sánchez-Sánchez, A. Rodríguez-Fernández, Á. Ramírez-Navarro, M. Gómez-Río, C. Ramos-Font, J.M. Llamas-Elvira
{"title":"PET/CT: PET显示肺局灶性18f -氟脱氧葡萄糖摄取，但CT未见结构改变","authors":"R. Sánchez-Sánchez, A. Rodríguez-Fernández, Á. Ramírez-Navarro, M. Gómez-Río, C. Ramos-Font, J.M. Llamas-Elvira","doi":"10.1016/S1578-200X(10)70021-8","DOIUrl":null,"url":null,"abstract":"<div><p>The combination of positron emission tomography (PET) and computed tomography (CT) in a single device (PET/CT) provides a powerful diagnostic tool opening new horizons for imaging diagnosis.</p><p>In order to correctly interpret PET/CT studies, knowledge of the biodistribution of <sup>18</sup>F-fluorodeoxyglucose (FDG), the physiological variants as well as the pitfalls, including the artefacts which may be found is necessary. We report four cases performed during the follow up diagnosis of an oncology study performed with <sup>18</sup>F-FDG-PET/CT. This study showed focal uptake in the lung parenchyma in the PET study in all the cases, with no structural lesions being found on CT scan. Radiotracer extravasation in three of these patients and a recent change in the injection protocol used suggest that an artefact was responsible for these discrepancies.</p></div>","PeriodicalId":101111,"journal":{"name":"Revista Espa?ola de Medicina Nuclear (English Edition)","volume":"29 3","pages":"Pages 131-134"},"PeriodicalIF":0.0000,"publicationDate":"2010-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1578-200X(10)70021-8","citationCount":"1","resultStr":"{\"title\":\"PET/CT: Focal lung uptake of 18F-fluordeoxyglucose on PET but no structural alterations on CT\",\"authors\":\"R. Sánchez-Sánchez, A. Rodríguez-Fernández, Á. Ramírez-Navarro, M. Gómez-Río, C. Ramos-Font, J.M. Llamas-Elvira\",\"doi\":\"10.1016/S1578-200X(10)70021-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The combination of positron emission tomography (PET) and computed tomography (CT) in a single device (PET/CT) provides a powerful diagnostic tool opening new horizons for imaging diagnosis.</p><p>In order to correctly interpret PET/CT studies, knowledge of the biodistribution of <sup>18</sup>F-fluorodeoxyglucose (FDG), the physiological variants as well as the pitfalls, including the artefacts which may be found is necessary. We report four cases performed during the follow up diagnosis of an oncology study performed with <sup>18</sup>F-FDG-PET/CT. This study showed focal uptake in the lung parenchyma in the PET study in all the cases, with no structural lesions being found on CT scan. Radiotracer extravasation in three of these patients and a recent change in the injection protocol used suggest that an artefact was responsible for these discrepancies.</p></div>\",\"PeriodicalId\":101111,\"journal\":{\"name\":\"Revista Espa?ola de Medicina Nuclear (English Edition)\",\"volume\":\"29 3\",\"pages\":\"Pages 131-134\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S1578-200X(10)70021-8\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Revista Espa?ola de Medicina Nuclear (English Edition)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1578200X10700218\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Revista Espa?ola de Medicina Nuclear (English Edition)","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1578200X10700218","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
PET/CT: Focal lung uptake of 18F-fluordeoxyglucose on PET but no structural alterations on CT
The combination of positron emission tomography (PET) and computed tomography (CT) in a single device (PET/CT) provides a powerful diagnostic tool opening new horizons for imaging diagnosis.
In order to correctly interpret PET/CT studies, knowledge of the biodistribution of 18F-fluorodeoxyglucose (FDG), the physiological variants as well as the pitfalls, including the artefacts which may be found is necessary. We report four cases performed during the follow up diagnosis of an oncology study performed with 18F-FDG-PET/CT. This study showed focal uptake in the lung parenchyma in the PET study in all the cases, with no structural lesions being found on CT scan. Radiotracer extravasation in three of these patients and a recent change in the injection protocol used suggest that an artefact was responsible for these discrepancies.
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