Lei Dong, Ph.D. 1995, The University of Texas at Houston Graduate School of Biomedical Sciences The University of Texas M. D. Anderson Cancer Center Department of Radiation Physics Contact Information Biographical Sketch

Research Interests:

• Intensity-modulated radiation therapy (IMRT)
• Computer-controlled radiation delivery system
• Treatment planning and optimization
• Electronic portal imaging and radiation dosimetry

My primary research interest is in image-guided radiation therapy, which involves the use of multi-modality imaging techniques for on-line or off-line guidance of external-beam radiation treatment. I have been using the electronic portal imaging, transabdominal ultrasound, in-room CT, and recently the on-board kilo-voltage x-rays and cone-beam CT to study the geometric and dosimetric uncertainties during the course of radiotherapy treatment. With the recent development of highly conformal radiation treatment, such as the intensity modulated radiation therapy (IMRT) and proton beam therapy, these treatment-related uncertainties become one of the main issues. Our knowledge is lagging about the accuracy of radiation dose delivered to the patient in the presence of organ motion and how the tumor cells accurately responded to radiation doses. With the increasing use of novel imaging techniques in radiation therapy, there is an opportunity to reduce

A tutorial in my group would provide experience in image registration, treatment planning, and technologies in image guidance.



Publications



Program Affiliation:

Program in Medical Physics