Improving the resting state fMRI detection in anesthetized monkeys using multiband MRI technique

Neuroimaging studies of non-human primates are generally conducted with anesthesia using anesthetics like isoflurane which is known to suppress the neuronal activation of the brain substantially. The resting state functional MRI (rsfMRI) examination in anesthetized monkeys is hindered by limited choices of anesthetics compared to rodent studies. In the present study, multiband MRI technique was explored to improve the rsfMRI detection in anesthetized macaque monkeys. The preliminary results suggest the multiband MRI can be employed to dramatically improve the rsfMRI detection in examining the functional connectivity of default mode network in anesthetized monkeys using a clinical 3T setting.