1. Department of Optics and Photonics, National Central University, Taoyuan, Taiwan, 320, Institute of Biomedical Imaging and Radiological Sciences and Institute of Biophotonics, National Yang Ming University, Taipei, Taiwan, 112, Department of Radiology, Taipei City Hospital Heping Branch, Taipei, Taiwan, 106, and Graduate Institute of Electro-Optical Engineering, Chang Gung University, Taoyuan, Taiwan, 333