This phase II trial studies how well 18F-FSPG positron emission tomography (PET)/computed tomography (CT) work in diagnosing early lung cancer in patients with lung nodules. PET imaging with an imaging agent called 18F-FDG is often used in combination with a PET/CT scanner to evaluate cancers. Giving 18F-FSPG before a PET/CT scan may work better in helping researchers diagnose early lung cancer in patients with lung nodules.
I. Comparison of fluorine F 18 L-glutamate derivative BAY94-9392 (18F-FSPG) accumulation with fludeoxyglucose F-18 (18F-FDG) accumulation to assess whether (4S)-4-(3-18F-Fluoropropyl)-L-Glutamate (18F-FSPG)-PET is better at discriminating between benign and malignant nodules.
SECONDARY OBJECTIVES:
I. To develop and validate early lung cancer detection biomarkers that would directly impact the growing need to integrate imaging and non-invasive molecular diagnostics for indeterminate pulmonary nodules and allow physicians to avoid unnecessary invasive procedures in patients with benign lung disease.
OUTLINE:
Patients receive 18F-FSPG intravenously (IV) and, undergo a PET/CT scan over 30-60 minutes. Within 24 hours-14 days, patients receive 18F-FDG and undergo a second PET/CT scan over 30-60 minutes.
After completion of study, patients are followed up within 24-72 hours.
Pulmonary nodule between the size of 7 to 30 mm. Subjects with multiple nodules may be eligible if the dominant nodule is 7 to 30 mm Undergoing standard of care 18F-FDG PET imaging (for indeterminate pulmonary nodule) Current or former cigarette smoker, with >= 20 pack years Documented informed consent
Exclusion Criteria:
History or previous diagnosis of lung cancer Cancer diagnosis within the last 5 years Pregnant or nursing
