ABSTRACT

Phantoms ...................................................................................................... 597 26.1.2.1 Dynamic Thorax Computational Phantom ............................ 597 26.1.2.2 Quality Assurance System for Advanced

Radiotherapy (QUASAR)™ Computational Phantom ............ 598 26.1.3 Review of Current Existing 4D Virtual Computational Phantoms ..... 598 26.1.3.1 NCAT Computational Phantom ............................................... 599 26.1.3.2 4D VIP-Man ................................................................................. 599 26.2 Methods ...................................................................................................................... 599 26.3 Discussion ..................................................................................................................603 26.3.1 Ionizing Imaging vs. Nonionizing Imaging ...........................................603 26.3.2 Tracking vs. Predicting ..............................................................................603 26.3.3 Preplanning, Live Planning, and Postplanning .....................................604 26.3.4 Future Trends of IGRT ................................................................................604 26.4 Conclusion ..................................................................................................................604 References .............................................................................................................................604