1. State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics & Center for Molecular Imaging and Translational MedicineSchool of Public HealthXiamen University Xiamen 361102 China
2. Department of Magnetic Resonance ImagingThe First Affiliated Hospital of Zhengzhou University Zhengzhou 450052 China
3. Xiamen Cardiovascular HospitalXiamen University Xiamen 361102 China
4. Laboratory of Molecular Imaging and NanomedicineNational Institute of Biomedical Imaging and BioengineeringNational Institutes of Health Bethesda MD 20892 USA