1. From the Multimodal Imaging and Theranostic Lab, Cardiovascular Center, Korea University Guro Hospital, Seoul, Republic of Korea (S.L., J.W.S., D.J.O., J.W.K.); Department of Biomedical Engineering, Hanyang University, Seoul, Republic of Korea (M.W.L., H.S.N., H.Y.); Department of Mechanical Engineering, KAIST, Daejeon, Republic of Korea (H.S.C., W.-Y.O.); and Division of Bioimaging, Chuncheon Center, Korea Basic Science Institute, Chuncheon, Republic of Korea (K.P.).