title: Magnetic Resonance Imaging Findings in a Positron Emission Tomography-Positive Thoracic Aortic Aneurysm.
abstract: Diffusion-weighted MRI (DW-MRI) and (18)F-fluorodeoxyglucose positron emission tomography (FDG-PET) findings are described in a patient with a thoracic aortic aneurysm. Both examinations have the ability to noninvasively assess biological processes associated with aneurysm instability and therefore to potentially impact clinical decision-making regardless of the vessel size. Despite similarities between images on both techniques, FDG-PET evaluates glycolysis, while DW-MRI evaluates cell density, edema, and perfusion. Longitudinal studies including larger patient numbers are needed to investigate the temporal continuum and clinical significance of these findings.
authors.affiliation: Department of Cardiovascular and Thoracic Imaging, University Hospital, Liège, Belgium;
authors.forename: Alain
authors.initials: A
authors.lastname: Nchimi
authors.affiliation: Department of Cardiovascular and Thoracic Imaging, University Hospital, Liège, Belgium;
authors.forename: Thierry
authors.initials: T
authors.lastname: Couvreur
authors.affiliation: Department of Cardiovascular and Thoracic Imaging, University Hospital, Liège, Belgium;
authors.forename: Benoit
authors.initials: B
authors.lastname: Meunier
authors.affiliation: Department of Cardiovascular Surgery, University Hospital, Liège, Belgium.
authors.forename: Natzi
authors.initials: N
authors.lastname: Sakalihasan
keywords: Aortic aneurysm; Magnetic resonance imaging; Positron emission tomography