Added value of F-florbetaben amyloid PET in the diagnostic workup of most complex patients with dementia in France: A naturalistic study.

Introduction: Although some studies have previously addressed the clinical impact of amyloid positron emission tomography (PET), none has specifically addressed its selective and hierarchical implementation in relation to cerebrospinal fluid analysis in a naturalistic setting.

Methods: This multicenter study was performed at French tertiary memory clinics in patients presenting with most complex clinical situations (i.e.

Benefits of respiratory-gated 18F-FDG PET acquisition in lung disease.

Background: Fluorine-18-fluorodeoxyglucose (F-FDG) PET/computed tomography (CT) is a reliable imaging modality for the diagnosis of malignant lung nodules and to assess the latter's prognosis. However, physiological respiratory motion deteriorates PET images and thus decreases the technique's diagnostic and prognostic values. This issue can be overcome by applying respiratory gating to the F-FDG PET/CT acquisitions.