TVD 2016

Quantification of organ motion

Organ motion analysis

repeat CT

Analysis of prostate motion and deformation (Deurloo et al IJROBP 2004)

4D CT

4D CBCT

4D MRI

SD (mm)

0-0.25 0.25-0.75 0.75-1.25 1.25-1.75 1.75-2.25 2.25-2.75

local shape variation displayed in color wash on average GTV