I’ve been tying to figure out a way to do this. Basically, I have a pretty high resolution CTA scan. I want to be able to segment out the heart valves. The only challenge is none of the 3 planes allow me to see a top down picture of any of the heart valves. I am guessing there is a way to rotate the planes so I can get the correct view and segment the heart valves from there? Does anyone know how to do this using CT scans?