Samanta Rosati

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Near-infrared spectroscopy (NIRS) is a noninvasive system for the real-time monitoring of the concentration of oxygenated (O 2 Hb) and reduced (HHb) hemoglobin in the brain cortex. O 2 Hb and HHb concentrations vary in response to cerebral autoregulation. Sixty-eight women (14 migraineurs without aura, 49 migraineurs with aura, and 5 controls) performed(More)
Porto, the institutional repository of the Politecnico di Torino, is provided by the University Library and the IT-Services. The aim is to enable open access to all the world. Please share with us how this access benefits you. Your story matters. Diabetic patients might present peripheral microcirculation impairment and might bene¯t from physical training.(More)
Discretization is an important step introduced in the field of Knowledge Discovery in Databases to better represent the knowledge domain and increase the learning speed and performance of Data Reduction and Data Mining algorithms. However, no studies evaluated the benefits of introducing a discretization step into a more complex system. In this study we(More)
The optimization of the clinical staff resources is a very complicated task that can be supported by a set of tools called Patient Classification Systems (PCS). These methods allow the evaluation of the correct number of nurses and healthcare workers needed in order to guarantee an appropriate care level.
Porto, the institutional repository of the Politecnico di Torino, is provided by the University Library and the IT-Services. The aim is to enable open access to all the world. Please share with us how this access benefits you. Your story matters. Abstract. Carotid artery (CA) intima-media thickness (IMT) is commonly deemed as one of the risk marker for(More)
The automated tracing of the carotid layers on ultrasound images is complicated by noise, different morphology and pathology of the carotid artery. In this study we benchmarked four methods for feature selection on a set of variables extracted from ultrasound carotid images. The main goal was to select those parameters containing the highest amount of(More)
In the last decade, the use of information technology (IT) in healthcare has taken a growing role. In fact, the adoption of an increasing number of computer tools has led to several benefits related to the process of patient care and allowed easier access to social and health care resources. At the same time this trend gave rise to new challenges related to(More)
The carotid artery intima-media thickness (cIMT) is commonly deemed an indicator for cardiovascular diseases. Several methods were proposed for the automatic estimation of the IMT on ultrasound carotid images, in order to obtain accurate, objective and repetitive values. One of the most used techniques for image segmentation is the snake, often requiring a(More)
Many parameters are usually extracted to fully describe the foot-floor-contact of a patient's gait. A single gait score can be useful to help the clinician in pre/post treatment assessment and patient's follow-up. We describe and validate a method to calculate a gait impairment score through a fuzzy classifier. From the foot-switch signal recorded during a(More)
Gait alterations are observed even years after hip replacement surgery. Such long-lasting alterations may arise from a global change of the motor control strategies. The aim of this work is to investigate the changes in gait motor control strategies of patients after hip replacement surgery by analyzing the frequency of occurrence (OF) of myoelectric(More)