Table 2.

Treatment results

Parameters	CT	PET-CT	P
GTV (cm3)
Mean ± S.D.	92.5 ± 32.3	104.5 ± 32.6	0.009
Min-max	50.0–161.2	57.8–167.4
PTV (cm3)
Mean ± S.D.	479.4 ± 103.4	535.2 ± 96.2	0.008
Min-max	337.4–708.4	376.5–728.2
Spinal cord dose (%)
Mean ± S.D.	22.8 ± 5.7	23.0 ± 5.3	0.22
Min-max	13.1–31.6	15.9–32.2
Liver dose (%)
Mean ± S.D.	36.4 ± 7.3	37.3 ± 7.5	0.17
Min-max	26.1–50,1	27.1–50.8
Stomach dose (%)
Mean ± S.D.	42.3 ± 11. 7	46.3 ± 14.5	0.08
Min-max	19.7–59.1	24.4–66.8
Left kidney dose (%)
Mean ± S.D.	23.0 ± 5.0	23.9 ± 5.1	0.12
Min-max	14.2–33.5	15.9–31.3
Right kidney dose (%)
Mean ± S.D.	44.9 ± 8.7	50.2 ± 11.2	0.03
Min-max	30.8–62.8	28.7–66.2

Abbreviations: PTV = Planning target volume; GTV = Gross tumor volume; S.D = Standard deviation