Study of the Practical Post-processing Arithmetic on MRI

BOLD-fMRI is an experiment method which is used for magnetic resonance image technology to detect physiological change of different brain functional neural activity under different stimulation conditions. In this paper, we study post-processing arithmetic of human brain´s fMRI under the condition of acupuncture to obtain the brain´s activation region. In order to overcome the interference produced by fake shadow, the rotation transformation technology was used for registration of the images. Maximum mutual information method was proposed and used to increase the image´s character. By computing the relative coefficients between rest time and activation time, functional region and non-functional region can be effective detected. The experiment results show functional activity region processed by this method is close to theoretical prediction