Computer software and hardware for use in connection with implantable transponders for use in diagnostic imaging, including computerized tomography, ultrasound and x-ray, and therapeutic intervention in the fields of radiation therapy, surgical oncology, robotic surgical tools, image-guided surgery, and interventional devices used in minimally invasive procedures; computer software and hardware for use in connection with a wireless system comprised of implantable or external transponders, signal emission apparatus and signal receiving apparatus for determining relative locations of transponders in the human body, precision positioning of therapeutic and surgical targets, precision monitoring and navigating the human body and apparatus in relationship to each other in real-time, diagnostic imaging, and therapeutic and surgical intervention, all in the fields of radiation therapy, surgical oncology, robotic surgical tools, image-guided surgery, and interventional devices used in minimally invasive procedures; digital cameras; computer cameras; photographic cameras; optical transceivers