Over on hackaday is an article on a hackaday entry for biomedical. It's an open source electrical impulse body scanner. It's like an MRI or ultrasound machine with a difference and can be built really cheap (a few dollars).
This entry references a YouTube video where the code and design is open sourced and on GitHub.
An ARM M3 is being used. IMHO a P2 would fit here nicely.
Sorry I haven't copied the links.