Véronique Roch

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OBJECTIVE Statistical Parametric Mapping (SPM) is widely used for the quantitative analysis of brain images from ¹⁸F fluorodeoxyglucose positron emission tomography (FDG PET). SPM requires an initial step of spatial normalization to align all images to a standard anatomic model (the template), but this may lead to image distortion and artifacts, especially(More)
BACKGROUND This study aimed at assessing the changes in brain metabolism related to white-matter magnetic resonance (MR) hyperintensities of presumed vascular origin, with a voxel-based quantitative analysis of (18F)-fluorodesoxyglucose positron emission tomography (FDG-PET) imaging. METHODS Sixty older hypertensive patients with subjective memory(More)
INTRODUCTION The impact of age is crucial and must be taken into account when applying a voxel-based quantitative analysis on brain images from [¹⁸F]-fluorodeoxyglucose Positron Emission Tomography (FDG-PET). This study aimed to determine whether age-related changes in brain FDG-PET images are more accurately assessed when the conventional statistical(More)
Two forms of vitamin C are recognized, ascorbic acid and dehydro-ascorbic acid. Although most of the vitamin exists as ascorbic acid, both forms appear to be utilized similarly by the human (Sabry et al., 1958). Many species of animals are able to synthesize ascorbic acid and do not require it in the diet. When deprived of a dietary source of vitamin C for(More)
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