The Calypso® 4D Localization System™ is different from other methods to
prepare you for radiation treatment. The Calypso System uses radiofrequency waves
which allow very accurate alignment of your prostate before each treatment session.
It can also be used to monitor the position of the prostate at all times during
your radiation treatment delivery.
How the Calypso® 4D Localization System™ Works
1. Three tiny Beacon® electromagnetic transponders are implanted into your prostate
In an outpatient procedure, similar to a biopsy, Beacon® transponders are implanted
into your prostate. Each transponder is about as small as a grain of rice.
Three tiny Beacon® electromagnetic transponders are implanted into your prostate.
2. The system excites the Beacon® electromagnetic transponders
The Beacon® transponders communicate with the Calypso® 4D Localization System™
using safe radiofrequency waves.
Activate transponders.
Transponders send signals back.
3. Your prostate is monitored during treatment
The Calypso System shows exactly where the tumor is all the time during your radiation
treatment so that the doctor can make quick, important decisions about your care.
A display shows the position of your prostate continuously. When the prostate is
out of position, the graphic is color coded to alert the therapist. This is an actual
patient record that demonstrates a prostate that has drifted out of alignment by
1 cm (yellow indicates out-of-tolerance).
