Ultrasound Guided Radiation Therapy for Prostate Cancer

A system for the accurate localization and fixation of the prostate during the planning and treatmecancer using radiation therapy is to be developed. The visualization of the prostate gland is achievtransrectal ultrasonography. During treatment planning, the precise position of the prostate gland,transrectal ultrasound image, relative to proximal anatomical structures, such as the rectum and bladiagnostic x-ray images, is determined. Following the planning phase, the accurate localization of tradiation treatment field is also determined. Both of these quantitative localizations are achievedtransformation of the ultrasound image data to the space of the diagnostic images during the planninof the radiation field during the treatment phase. The position of the ultrasound image data relativachieved by the development of a couch mount for the transrectal probe. Real time imaging software hperform the image transformations and to aid in visualization during the planning and treatment phas