http://www.hitthetumor.com Dr. Scott Tropper talks about how Calypso minimizes prostate radiation side effects for his patients. CalypsoâÂÂs GPS for the Body technology tracks the prostate in real-time during cancer radiation treatments. CalypsoâÂÂs precise real-time tracking allows for increased radiation dose, which improves the prognosis for prostate cancer recovery while reducing side effects from the cancer radiation treatment.