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The aim of this retrospective study is to evaluate the clinical impact and efficacy of fluorodeoxyglucose (FDG) positron emission tomography-computed tomography (PET/CT) on management decisions for patients suffering from clinically operable non-small-cell lung cancer (NSCLC). A retrospective review of 186 potentially operable NSCLC patients who underwent whole-body PET/CT examination in 2012 was performed. The patients were further analyzed via the electronic patient record (ePR) system for relevant findings. Overall change in management was assigned if a patient avoided unnecessary surgery due to disease upstaging or if a patient underwent further neoadjuvant treatment or investigation before the curative surgery. Of all 186 subjects, 65 (34.9%) became inoperable after PET/CT due to disease upstaging. The remaining 121 (65.1%) of patients remained operable after PET/CT examination. Nineteen out of 121 potentially operable patients did not receive curative surgery eventually, as 11 patients had poor clinical condition and 8 patients refused surgery. One hundred two out of 186 (54.8%) patients received curative operation following PET/CT. Among these 102 individuals, 97 patients (95%) proceeded to surgery without further neoadjuvant treatment or other investigatory procedures. Of the remaining 5 patients, 4 (3.9%) received neoadjuvant treatment and 1 (1.0%) had further investigation after PET/CT. Seventy of the 186 (37.6%) patients underwent changes in management plans after PET/CT study. Out of the 186 individuals, a subgroup of 141 (75.8%) patients underwent dedicated CT thorax before PET/CT examination. Forty-seven (33.3%) patients had avoided futile surgery due to disease upstaging. Fifty-one of the 141 (36.2%) patients underwent changes in management plans after PET/CT. PET/CT had great clinical impact, with significant reduction of futile curative surgery.

The pearl of FDG PET/CT in preoperative assessment of patients with potentially operable non-small-cell lung cancer and its clinical impact