LOS ANGELES--(BUSINESS WIRE)--Calypso Medical is announcing results of scientific investigations with the Calypso® 4D Localization System™ to be presented at the American Society for Therapeutic Radiology and Oncology (ASTRO) 49th Annual Meeting at the Los Angeles Convention Center, October 28-31. The scientific investigations include two oral and eleven poster presentations summarizing clinical experiences with the Calypso System during radiation therapy delivery.