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Re:NASA: We're sending humans to Mars by lostlogin on Wednesday December 03, 2014 @03:34AM (#8692528)
I thought I was aware of the early history of CT and MRI and am unaware of the space programme connection. Any chance you could point me at anything - my googling isn't getting me anywhere.
Re:NASA: We're sending humans to Mars by blisterpeanuts on Thursday December 04, 2014 @09:44AM (#8699404)
http://spinoff.nasa.gov/spinfaq.htm#spinfaq9

Nasa and Nasa-related contractors did not invent MRI and CAT scanners, but they contributed significantly to the technology as well as related aspects like digital image processing (developed at JPL for processing Moon images).

I mean, probably MRI and CT scanners would have been developed anyway. But space research definitely helped move things along.