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BACKGROUND Metabolic tumour volume (MTV) obtained from pre-treatment 18 F-fluorodeoxydeglucose positron emission tomography with computed tomography (PET-CT) has been validated as an independent predictive factor of outcomes in head and neck cancer patients (HNC) treated with primary chemoradiotherapy (CRT). However its role in patients treated with primary(More)
BACKGROUND Lung cancer is a common cause of cancer-related death. Staging typically includes positron emission tomography (PET) scanning, in which (18)F-fluoro-2-dexoy-D-glucose (FDG) is taken up by cells proportional to metabolic activity, thus aiding in differentiating benign and malignant pulmonary nodules. Uptake of FDG can also occur in the abdomen.(More)
An aqueous primary standard is needed for measuring cholesterol by enzymatic procedures. Sodium deoxycholate solubilizes cholesterol in water. Crystalline cholesterol (1.00, 3.00, 4.00, and 5.00 g/L), added to a solution containing 150 g of this compound per liter of a 9 g/L saline solution, was measured by a cholesterol oxidase procedure, with a(More)
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