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A magnetic resonance functional imaging (fMRI) of the brain is a noninvasive procedure using no radiation and measures brain activity by observing changes in blood oxygenation and flow in response to neural stimulation. It can create dozens or sometimes hundreds of images in a short time.
An MRI functional imaging of the brain is used to examine the brain and evaluate which parts of the brain are managing critical activities. It can also analyze stroke effects and help in determining brain treatment. This imaging procedure can often detect complex brain problems that other diagnostic tests cannot. It is also used in observing brain tumors.