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- W2889940029 abstract "e20083 Background: The role of dual-time-point PET/CT acquisition for mediastinal node staging in non-small cell lung cancer (NSCLC) is still controversial. Interpretation of PET/CT results is challenging in areas with high prevalence of infectious granulomatous diseases, whereas the use of dual-time PET/CT could reduce the false-positive results. This study aims to evaluate the performance of dual-time PET-CT for mediastinal node staging in patients with NSCLC in an area with high prevalence of infectious granulomatous diseases (i.e. 99 cases of tuberculosis per 100.000 habitants). Methods: Patients diagnosed with clinical stages I-III NSCLC performed dual-time-point PET/CT (images acquired in hour 1 and 2) followed by mediastinal lymph node biopsy. Different cut-offs for SUV were evaluated to test accuracy in each time-point. Results: One hundred patients were enrolled, of which 85 had mediastinal node biopsy after PET-CT. Median age was 65 years (range 47-80), 49 (58%) were male, 80 (94%) were current or former smokers, and 1 (1.2%) had history of tuberculosis. Dual-time-point acquisition results were similar to those in single-time-point (Table 1). The highest sensitivity (87%) and NPV (90%) was achieved when a cut-off SUV > 0 was used. Conclusions: Dual-time point PET/CT did not improve accuracy of PET/CT-based LN staging in NSCLC in an area with high prevalence of infectious granulomatous diseases. [Table: see text]" @default.
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- W2889940029 date "2017-05-20" @default.
- W2889940029 modified "2023-09-27" @default.
- W2889940029 title "Dual time PET-CT for mediastinal nodal staging in patients diagnosed with non-small cell lung cancer in an area with high prevalence of infectious granulomatous disease (LACOG-0114)." @default.
- W2889940029 doi "https://doi.org/10.1200/jco.2017.35.15_suppl.e20083" @default.
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