Table 4.

Values of D5 for spinal cord and differences in D5 values relative to control for each of the 10 study patients, using varying combinations of regions of interest to drive the deformations in the four‐dimensional (4D) dose calculations

Patient	D5 values (cGy)						D5 differences (cGy)
	LHCE	LHC	LH	LE	LC	L	$LHC-LHCE$ $LHC-LHCE$	$LH-LHCE$ $LH-LHCE$	$LE-LHCE$	$LC-LHCE$	$L-LHCE$
1	3550	3550	3550	3550	3550	3550	0	0	0	0	0
2	3750	3700	4000	3800	3600	2750	$-50$	250	50	$-150$	$-1000$
3	3900	3750	3550	3800	3150	3250	$-150$	$-350$	$-100$	$-750$	$-650$
4	1650	1700	1900	1800	1650	1850	50	250	150	0	200
5	3500	3000	4550	4750	2300	1700	$-500$	1050	1250	$-1200$	$-1800$
6	400	400	450	450	350	400	0	50	50	$-50$	0
7	4050	4050	4200	4100	4000	4250	0	150	50	$-50$	200
8	4500	4500	4650	4700	4200	4300	0	150	200	$-300$	$-200$
9	4100	4600	4300	4050	4650	4200	500	200	$-50$	550	100
10	4650	4800	5150	5100	4650	4300	150	500	450	0	$-350$
RMS deviation							235	411	430	492	701
Maximum deviation							500	1050	1250	1200	1800

$\mathrm{D}5=\mathrm{m}\mathrm{a}\mathrm{x}\mathrm{i}\mathrm{m}\mathrm{u}\mathrm{m}\hspace{0.17em}\mathrm{d}\mathrm{o}\mathrm{s}\mathrm{e}\hspace{0.17em}\mathrm{r}\mathrm{e}\mathrm{c}\mathrm{e}\mathrm{i}\mathrm{v}\mathrm{e}\mathrm{d}\hspace{0.17em}\mathrm{b}\mathrm{y}\hspace{0.17em}\mathrm{a}\mathrm{t}\hspace{0.17em}\mathrm{l}\mathrm{e}\mathrm{a}\mathrm{s}\mathrm{t}\hspace{0.17em}5\hspace{0.17em}\mathrm{\%}\hspace{0.17em}\mathrm{o}\mathrm{f}\hspace{0.17em}\mathrm{s}\mathrm{p}\mathrm{i}\mathrm{n}\mathrm{a}\mathrm{l}\hspace{0.17em}\mathrm{c}\mathrm{o}\mathrm{r}\mathrm{d}$; $\mathrm{L}\mathrm{H}\mathrm{C}\mathrm{E}=4\mathrm{D}$ dose calculation driven by deformations of lung, heart, cord, external contour; $\mathrm{L}\mathrm{H}\mathrm{C}=4\mathrm{D}$ dose calculation driven by deformations of lung, heart, cord; $\mathrm{L}\mathrm{H}=4\mathrm{D}$ dose calculation driven by deformations of lung, heart; $\mathrm{L}\mathrm{E}=4\mathrm{D}$ dose calculation driven by deformations of lung, external contour; $\mathrm{L}\mathrm{C}=4\mathrm{D}$ dose calculation driven by deformations of lung, cord; $\mathrm{L}=4\mathrm{D}$ dose calculation driven by deformations of lung; $\mathrm{R}\mathrm{M}\mathrm{S}=\mathrm{r}\mathrm{o}\mathrm{o}\mathrm{t}\hspace{0.17em}\mathrm{m}\mathrm{e}\mathrm{a}\mathrm{n}\hspace{0.17em}\mathrm{s}\mathrm{q}\mathrm{u}\mathrm{a}\mathrm{r}\mathrm{e}$.