Tong Xu

Dr. Tong Xu is a Professor in the Department of Physics at Carleton University, affiliated with the Faculty of Science. His research focuses on real-time motion tracking for medical procedures, including tumor tracking during radiation therapy and image-guided surgery. He has pioneered the PeTrack technique using positron emission markers and developed the dynamic dual-energy x-ray imaging (dDEXI) method for lung tissue motion assessment. His work aims to improve radiation therapy accuracy, reduce patient radiation exposure, and enhance diagnostic tools. Dr. Xu holds a U.S. Patent (#8447387) for real-time tumor tracking technology and has contributed to advancements in medical imaging and radiation oncology.

His research interests span medical physics, radiation therapy, and biomedical engineering, with applications in oncology and cardiology. Key projects include respiratory motion management in PET/CT imaging and optimizing 4D-VMAT radiotherapy frameworks. Dr. Xu collaborates on interdisciplinary projects to translate imaging innovations into clinical practice.

• Awards: U.S. Patent #8447387 (2013)
• Key Technologies: PeTrack, dDEXI, motion-compensated imaging
• Labs/Groups: Medical Imaging and Radiation Physics Research Group at Carleton University