1. Guangdong Key Laboratory
for Biomedical Measurements and Ultrasound Imaging, School of Biomedical
Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, China
2. Key Laboratory
of Optoelectronic Devices and Systems of Ministry of Education and
Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
3. Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, United States