. Author manuscript; available in PMC: 2018 Nov 19.
Published in final edited form as: JACC Cardiovasc Imaging. 2018 Aug;11(8):1150–1172. doi: 10.1016/j.jcmg.2018.06.004
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).