1. Department of Surgery, Division of Cardiovascular Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
2. Biomedical Optical Imaging Lab, Department of Photonics, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
3. Department of Photonics and Institute of Biomedical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan