Table 2.

(2nd to 4th column) Differences ((CT-vCT)/CT) in $D_{2\%},D_{95\%},D_{98\%}$ and $D_{\text{mean}}$ between dose calculations on 4D-CT and 4D-vCT for the ITV. (5th column) $D_{\text{mean}}$ differences between dose calculations on 4D-CT and 4D-vCT for the lungs (without the ITV). Values are displayed for all ventilation phases as well as for the accumulated dose from all 10 phases.

	$\Delta D_{2\%}(ITV)$ [%]	$\Delta D_{95\%}(ITV)$ [%]	$\Delta D_{98\%}(ITV)$ [%]	$\Delta D_{\text{mean}}(ITV)$ [%]	$\Delta D_{\text{mean}}(\text{lungs})$ [%]
Phase 1	0.4	0.1	0.3	0.2	−0.4
Phase 2	0.1	0.3	0.7	0.1	5.1
Phase 3	−0.1	−0.2	−0.3	−0.2	5.5
Phase 4	−0.1	−0.7	−0.9	−0.3	5.8
Phase 5	−0.1	0.6	1.1	−0.1	5.1
Phase 6	−0.2	1.5	2.3	0.1	4.3
Phase 7	−0.1	0.7	1.2	0.1	3.2
Phase 8	0.1	−2.8	−4.9	−0.25	−5.4
Phase 9	0.1	0.1	0.0	0.1	1.1
Phase 10	0.5	−3.5	−5.7	−0.5	1.5
Accumulated	−0.0	−0.2	−0.1	−0.1	2.3