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Slide 33
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