RT Journal Article SR Electronic T1 PET and endobronchial ultrasound. SUV value of mediastinal lymph nodes suspicious for malignancy JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP PA4326 DO 10.1183/13993003.congress-2015.PA4326 VO 46 IS suppl 59 A1 Bertó Botella, Juan A1 López Zalduendo, Esmeralda A1 Gonzalez Gutierrez, Jessica A1 Sánchez Salcedo, Pablo A1 Rivera, Pilar A1 Campo, Arantxa A1 Alcaide, Ana Belen A1 De Torres, Juan Pablo A1 Martínez Urbistondo, Diego A1 Zulueta, Javier YR 2015 UL http://erj.ersjournals.com/content/46/suppl_59/PA4326.abstract AB Using positron emission tomography (PET) in the diagnosis of suspected malignant lymph nodes in non-small cell lung cancer is well established. The main problem is that false positives values derived from SUV low (<3). The main objective of this study is to establish an optimal value for predicting malignancy. This is a retrospective analysis of 50 patients who underwent FNA of mediastinal lymphadenopathy endobronchial ultrasound guided. Anthropometric variables, six-minute walking test, pulmonary function tests were collected and and biopsied lymph nodes and values of SUV on PET of these lymph nodes were analyzed. A statistical study was performed with the SPSS statistics program. Analyzes of sensitivity, specificity and ROC curves were done. The minimum value of SUV was 1.80 and the maximum of 25.23. 21 cancers were diagnosed. ROC curve results and sensitivity study is shown in figure added. Using a range of from 2.5 SUV, in our cohort we have observed that a value of SUV of 2.5 had 85.7% sensitivity and 62.5% specificity (p <0.05) for the diagnosis of suspected malignant lymphadenopathy.