INVESTIGATION ON LAND DATABASE UPDATING BASED ON HIGH RESOLUTION AIRBORNE IMAGES

A method and apparatus for localizing and treating a patient's prostate by radiation therapy. The system includes an ultrasound probe for generating an ultrasound image of the prostate with the probe having at least two fiducial end points as landmarks. In addition, the system includes a CT apparatus to generate X-ray simulator images of the anatomical region near the prostate and further includes a computer executing computer software to transform the ultrasound image to the simulator image enabling accurate localization of the prostate relative to proximate anatomical features enabling accurate radiation therapy to be carried out on the prostate.