1. Department of Radiology; Affiliated hospital of Guangdong Medical College; Guangdong China
2. Department of Radiology; Sun Yat-Sen Memorial Hospital; Sun Yat-sen University; Guangzhou Guangdong China
3. Center for Biomedical Imaging Research; Department of Biomedical Engineering; School of Medicine; Tsinghua University; Beijing China
4. Department of Radiology; The Fifth Affiliated Hospital of Sun Yat-Sen University; Guangdong China
5. Philips Healthcare; Hong Kong China
6. Department of Pediatrics; Sun Yat-Sen Memorial Hospital; Sun Yat-sen University; Guangzhou Guangdong China