I know it's been a while since I posted about corseting. However, there's a blogger/YouTube corsetier I follow who recently reported on the MRI results of a woman tightlacing in a corset. I found it very interesting and wish I could've watched the actual show from Germany. Lucy does show images and talks about the results.
If you're interested in what corseting will do to the body, check this out. http://lucycorsetry.com/2014/10/08/corset-organs-mri/