KPBS has an article about a computer scientist who had a 3-D model made of the part of his colon that was going to be cut out. Access the article at http://www.kpbs.org/news/2017/mar/09/why-uc-san-diego-professor-planned-his-surgery-vir/. His surgeon used the model in preparation for the surgery and the 3-D image during surgery. The surgery was successful and he is recovering nicely. "It remains to be seen whether other bowel surgeons will want to incorporate 3-D imaging into their operating rooms. Ramamoorthy said she is enthusiastic about the idea. She plans to use 3-D imaging with more of her patients in the hopes of standardizing this approach."
Interesting story about this computer scientist. He has some background information I found interesting. Funny how life leads us from one thing to another.