Calypso® 4D Localization System™ for pancreatic cancer
The pancreas can move during radiation treatment as a result of breathing and normal movement in the intestines. Typically, radiation oncologists expand the treatment area to ensure the moving target is irradiated. In the process, healthy tissue near the pancreas may also be affected, leading to a high rate of side effects such as nausea, vomiting or stomach ulcers that may bleed.
In this recent generation of the Calypso® system, Beacons are implanted in the target region of the pancreas, allowing real-time tracking of the tumor during treatment. This allows radiation oncologists to determine the position of the patient’s tumor 25 times a second, and automatically shut the beam off in the event of a cough, sneeze, stomach bubble or other internal change of position that moves the tumor out of the X-ray beam. By targeting cancer cells and avoiding nearby healthy tissues, Calypso spares the bladder, colon and other critical structures. Common side effects of pancreatic cancer radiation therapy, such as nausea, diarrhea and ulcers, may be greatly minimized through the use of Calypso technology.