Wouldn't the brain be severely damaged by such a process? After all, 80 percent of our brain is water, and water expands in freezing. Wouldn't this damage brain tissue? Yes, the brain and the body are severely damaged by freezing, because the ice crystals that form are spikey and tear through the cells.
Supposedly, sometime in the future, nanorobots will be used to repair this kind of cellular damage.
I view that as wishful thinking. I think that once the motor has stopped running, there's no starting it back up.