Evaluation of Semiquantitative Assessments of Fluorodeoxyglucose Uptake on Positron Emission Tomography Scans for the Diagnosis of Pulmonary Malignancies 1 to 3 cm in Size

The FDG uptake evaluated by the CR lung is superior to that evaluated using the visual assessment, SUVmax, and CR brain for the diagnosis of pulmonary malignancies, especially for well-differentiated lung adenocarcinoma. The simplified formula of CR lung with T/N can be used in place of that with T-N/T+N.