[Wang, Xiuying;Tang, Wensi;Cui, Hui;Feng, David Dagan] Univ Sydney, Sch Informat Technol, Biomed & Multimedia Informat Technol BMIT Res Grp, Sydney, NSW, Australia.^[Zeng, Shan] Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan, Hubei, Peoples R China.^[Feng, David Dagan] Shanghai Jiao Tong Univ, Med X Res Inst, Shanghai, Peoples R China.^[Fulham, Michael] Univ Sydney, Fac Med, Sydney, NSW, Australia.^[Fulham, Michael] Royal Prince Alfred Hosp, Dept PET & Nucl Med, Camperdown, NSW, Australia.