1. Department of Radiology; Brigham and Women's Hospital; Boston Massachusetts USA
2. College of Engineering; University of Georgia; Athens Georgia USA
3. Department of Cardiology; Brigham and Women's Hospital; Boston Massachusetts USA
4. Department of Radiology; Stanford University; Stanford California USA
5. Cardiovascular and Ablation Technologies Division; St. Jude Medical; St Paul Minnesota USA
6. Department of Radiology; Cincinnati Children's Hospital Medical Center; Cincinnati Ohio USA