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A major challenge in brain-computer interface (BCI) research is to increase the number of command classes and levels of control. BCI studies often use binary control level approaches (level 0 and 1 of brain activation for each class of control). Different classes may often be achieved but not different levels of activation for the same class. The increase(More)
OBJECTIVE The purpose of this study was to evaluate the impact and clinical value of anatomical-functional image fusion in the study interpretation and clinical management of patients with neuroendocrine tumours (NET) using somatostatin receptor scintigraphy (SRS) and combined transmission and emission tomography -- single-photon emission tomography/CT(More)
BACKGROUND Acute chest pain is a frequent cause of emergency department (ED) visits. Rest myocardial perfusion imaging (RMPI) during or immediately after an episode of chest pain can provide diagnostic and prognostic information concerning acute coronary syndromes. AIM Our purpose was to evaluate the RMPI score in risk stratification of chest pain(More)
It has been advocated that using the stress followed by rest protocol, if the stress images were normal there is no need of rest images, reducing radiation exposure and costs. Our purpose was to assess the prognosis of a group of patients with normal stress-only gated-SPECT myocardial perfusion imaging. This was retrospective study that includes 790(More)
A screening was performed using nine marine-derived fungi as biocatalysts and the natural products (−)-ambrox® (1), (−)-sclareol (2), and (+)-sclareolide (3) in order to select the microorganisms able to catalyze the biooxidation of these compounds. It was observed that only the Aspergillus sydowii CBMAI 934, Botryosphaeria sp., Eutypella sp., and Xylaria(More)
INTRODUCTION Gated SPECT myocardial perfusion imaging (MPI) has been used to quantify mechanical dyssynchrony. Mechanical dyssynchrony appears to be related to response to cardiac resynchronization therapy. OBJECTIVE To evaluate the presence and predictors of mechanical dyssynchrony in patients with impaired left ventricular function (LVEF) ≤50%. (More)
The identification and interpretation of facial expressions is an important feature of social cognition. This characteristic is often impaired in various neurodevelopmental disorders. Recent therapeutic approaches to intervene in social communication impairments include neurofeedback (NF). In this study, we present a NF real-time functional Magnetic(More)
INTRODUCTION The 18F-NaF positron emission tomography/computed tomography is being considered as an excellent imaging modality for bone metastases detection. This ability was compared with other imaging techniques. MATERIAL AND METHODS We retrospectively evaluated 114 patients who underwent 18F-NaF positron emission tomography/ computed tomography. Of(More)
The authors emphasize the need for the development of non-invasive objective methods for the study of retinal circulation under physiologic or pathologic conditions. Clinical methods embrace the use of blue field entoptic phenomenon (that estimates leucocy tes circulating in the peri-foveal capillary bed), Laser-Doppler speedometer (that allows the mea(More)
BACKGROUND The aim of the present study was to evaluate the uptake of F18-NaF by the arterial wall in patients with high cardiovascular (CV) risk profile. The tracer uptake was assessed in relation to gender and the number of CV risk factors. METHODS AND RESULTS 25 patients without known CV disease were included and evaluated by PET-CT with F18-NaF: 14(More)