1. Department of Biomedical Engineering, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
2. Department of Cardiothoracic Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
3. Department of Radiology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
4. Department of Automation, Institute of Image Processing and Pattern Recognition, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
5. Healthcare Department, Philips Research China, Shanghai 200233, P.R. China