The Application of Functional Magnetic Resonance Imaging to Postoperative Cognitive Dysfunction in the Elderly

Functional magnetic resonance imaging(fMRI)is an imaging method that the various functional areas of cerebral cortex imaged in magnetic resonance imaging device by stimulate.It can reflect the nerve activity level of brain accurately and confirm the function brain area in alive body.It is a new original imagine method to evaluate the cognitive function of human.The studies on the altered brain functional areas,which may provide objective,macroscopic imaging bases for early prevention,diagnosis and treatment for patients with postoperative cognitive dysfunction.