@article{3115302, title = "Preliminary results on the role of PET/CT in initial staging, restaging, and management of lung cancer", author = "Malamitsi, J. and Valotassiou, B. and Iliadis, K. and Kosmidis, P. and and Laspas, F. and Vasilaki, M. and Pipini, E. and Petounis, A. and Gogou, and L. and Pagou, M. and Dalianis, K. and Efthimiadou, R. and Andreou, J.", journal = "NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT", year = "2006", volume = "569", number = "2, SI", pages = "319-322", publisher = "ELSEVIER SCIENCE BV", doi = "10.1016/j.nima.2006.08.151", keywords = "lung cancer; NSCLC; SCLC; SPN; PET/CT; FDG", abstract = "Aim: To determine true-positive and true-negative rates of PET/CT studies in the staging of lung cancer as compared with conventional imaging (CT and bone scan and occasionally MRI) and the impact of PET/CT on the treatment strategy in patients with lung cancer. Materials and method: Twenty patients (21 studies) with known or suspected lung cancer (14 patients with non-small-cell lung cancer (NSCLC), three patients with small-cell lung cancer (SCLC), three patients with solitary pulmonary nodule underwent initial staging (seven studies) or restaging (14 studies) with combined FDG PET and CT scans on a PET/CT tomograph. PET/CT images were evaluated separately by two nuclear medicine physicians and two radiologists specialized on PET, CT, and MRI. Histology results and a more than 6 months follow-up served as the reference standards. Results: Accurate diagnosis was achieved on 16 studies. Site-by-site analysis gave the following results: 16 true-positive sites (seven on histology, nine on > 6 months follow-up), six true-negative sites (two on histology, four on > 6 months follow-up). On PET/CT, six patients were correctly down-staged, three patients were correctly upstaged and seven patients were diagnosed correctly as being on the same stage (2/7 with increase of extent of disease, 5/7 with the same extent of disease). One patient was falsely upstaged and three patients were falsely down-staged. On the basis of PET/CT results, change of management was induced in six patients, while in 14 patients there was no change induced. In five cases PET/CT was partially accurate: on site-by-site analysis, four sites proved true positive (on histology), one site false positive (on histology), and four sites false negative (one on histology, three on > 6 months follow-up). Conclusion: In our early experience, PET/CT contributed significantly to correct staging and management of patients with lung cancer. (c) 2006 Elsevier B.V. All rights reserved." }