To apply radiosurgical methods to tumors in the chest and abdomen, it is necessary
to take into account respiratory motion. Respiratory motion can move the tumor by more
than 1 cm. Without compensation of this motion, it is unavoidable to enlarge the target volume
with a safety margin and so we have the problem that healthy tissue is involved.
Within this project we try to develop methods in order to be able to predict the position of the tumor
at a certain time.
In order to reach this goal, a correlation shall be established, which allows to infer
from the motion of the chest and the abdomen to the position of the tumor.
Infrared emitters are attached to the patient and tracked by a camera.
These emitter positions are attached every ten seconds with a live xray-image, in order
to be able to calculate the breathing status and so the tumor position.
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