Contained Rupture of a Thoracic Aortic Aneurysm Mimicking a Malignant Tumor: a Case Report.

An 81-year-old man underwent F-18 fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) to evaluate a mediastinal mass, which was discovered during the investigation for hemoptysis. The periphery of the mass abutting the aortic arch demonstrated heterogeneously increased FDG uptake, whereas most of the central portion of the mass was photopenic. The mass turned out to be an atheromatous organizing hematoma associated with contained aortic rupture.

Association Between Colonic F-FDG Uptake and Glycemic Control in Patients with Diabetes Mellitus.

Purpose: Positron emission tomography/computed tomography (PET/CT) with F-fluorodeoxyglucose (FDG) is a useful imaging modality that visualizes glucose utilization. Diffuse colonic FDG uptake is frequently observed in patients being treated for diabetes mellitus (DM), especially with metformin. The aim of this study was to evaluate whether patients without increased colonic FDG uptake after taking oral hypoglycemic agents (OHA) are associated with insufficient glycemic control.

Assessment of Left Ventricular Ejection Fraction by Thallium-201 Myocardial SPECT-CT in Patients with Angina Pectoris: Comparison with 2D Echocardiography.

Purpose: Left ventricular (LV) ejection fraction (EF) is an important parameter for assessing cardiac systolic function and predicting prognosis in patients with cardiovascular disease. The aim of this study was to evaluate the feasibility of assessing LVEF by Tl-201 hybrid myocardial single-photon emission computed tomography (SPECT)/CT using two attenuation correction methods in patients with angina pectoris.

Methods: A total of 339 patients with angina pectoris (62.