VIDEO fMRI basic principles and clinical application in epilepsy MRI functional magnetic resonance imaging was described for use in mapping the human visual cortex in 1991, and is based on blod oxigen level dependent (BOLD) changes in cortical regions that occur during specific task. typically , and overbundance of oxygenated (arterial) blood is supplied during activation of brain areas, consequently, the venous outflow from the activated areas contains a higer concentration of oxyhemoglobin, which changes the paramagnetic properties of the tissue that can be detected during a T2-star acquisition ...don't miss our conference each friday at 5 pm colombiam time.
