View clinical trials related to Magnetic Resonance.
Filter by:The objective of the study concerns the investigation of the role of awareness in visual perception, highlighting the brain systems involved during non-processing Aware of stimuli belonging to different semantic categories. Specifically, the theoretical perspective of reference is that of the so-called "grounded cognition", according to which the representation of the concepts of semantic knowledge is conveyed by information sensorimotor and affective, introspective and social states. The main objective is therefore to evaluate whether the meaning of the stimulus can be extracted in the absence of awareness, investigating the neural response in the brain regions known to be involved in the conscious processing of stimuli belonging to the semantic categories in question. To this end, two different experimental paradigms were implemented. A first paradigm aimed at investigating the unconscious representation of semantic knowledge in the context of language, therefore using visual stimuli in lexical mode (words). A second paradigm aimed at investigating the same phenomena in the field of visual perception of objects in space, using stimuli in iconic mode (images).
The goal of this observational study is to learn about the feasibility of enhanced three-dimensional water-selective cartilage (3D-WATSc) sequence in displaying the vessels of children's hip by magnetic resonance. The main questions it aims to answer are: - Could the images of enhanced 3D-WATSc sequence show the healthy side hip joint vessels in children? - Could the images of enhanced 3D-WATSc sequence show the vascular disease of the suffering side hip joint in children? Participants with unilateral hip disease will undergo the magnetic resonance examination including enhanced 3D-WATSc sequence. The pelvic plain film and magnetic resonance images will be collected and analysed. Researchers will compare the images of of the normal side with the images of the abnormal side to see if the enhanced 3D-WATSc sequence images could show the vascular disease of the suffering side hip joint in children?
The aim of this study is to assess the signal of melanin using Electron Paramagnetic resonance (EPR). Melanin is a paramagnetic pigment detectable by EPR. Recent advances in instrumentation allows the application of EPR in human beings. The characterization of melanin by EPR could be potentially interesting in the context of melanoma detection and characterization. While another clinical study is currently ongoing aiming at demonstrating the feasibility of the non-invasive detection of the EPR signal of melanin in melanoma patients, it is crucial to have a control group with healthy skin. The aim of the present study is to assess the influence of skin pigmentation of the EPR signal recorded. In the present clinical study, the EPR signal of melanin will be characterized in healthy skin with different phototypes (1-2, 3-4, 5-6) to assess the potential influence of skin pigmentation on the EPR signal.