Yes.  Buy a real, quality corset, not a cheap "sexy" or an infomercial foam thing.  And guess what, if you waist-train in MODERATION (ie reducing your waist 2-3 inches instead of 4+), you don't actually restructure your organs majorly.  You can still function 100% without a corset with no adverse affects. But if you're fat and you squish your fat into your organs, you'll have adverse affects regardless of how little you wear the corset.