1. The Key Laboratory of Resource Chemistry of Ministry of Education
2. Shanghai Key Laboratory of Rare Earth Functional Materials
3. and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors
4. Shanghai Normal University
5. Shanghai 200234
6. Department of Ultrasound in Medicine
7. Sixth People's Hospital Affiliated to Shanghai Jiao Tong University
8. Shanghai Institute of Ultrasound in Medicine
9. Shanghai
10. P. R. China