878 / 1161
Slide 25
Phantom measurements with moving spheres
in ungated PET and CT
CT:
significant distortion
PET:
image similar to ideal capsular shape
depicting sphere + motion
→
Possibility of exact imaging of 4-D-tumor volume
→
Reduction of risk for topographical miss
from „snapshot“-CT
ITV: PET and breathing movements
Caldwell IJROBP 2003 55; 1381-1393