You could use it for many things ranging from teaching yourself about biomedical imaging, to assessing the health and well being of various constituent body parts. It doesn't have as high spatial resolution as MRI, but it can have great time resolution(like EEG but EIT has better spatial and contrast information). 

Here is a summary of potential applications if it got a little bit better(with your help). 

Even if it is not as good as MRI for a particular purpose, perhaps it's better than nothing... making it a great option for situations where populations have none. 4 Billion people have no access at all to any form of medical imaging, and problems like Tubercolosis run rife.