I can't see enough details to know if any tissue is damaged though?
MRI is supposed to be more accurate wen evaluating structure, movement, perfusion...
Go to youtube and search fo "Cardiac MRI", it's amazing how well and MRI can image the heart even in motion.
I had an MRI to assess for ARVD. I posted the slice movies on youtube, check it out for yourself and you'll see it's an amazing tool.
copy and past into your browser
http://www.youtube.com/watch?v=9Ab4vqdB4Vo
You can see wall thickness, motion, valves working, in detail.