. Author manuscript; available in PMC: 2019 Sep 1.
Published in final edited form as: IEEE Trans Med Imaging. 2017 Nov 13;37(9):1978–1988. doi: 10.1109/TMI.2017.2772963
Personal use is permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information.