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Table 2 Treatment results

From: Comparison of CT and PET-CT based planning of radiation therapy in locally advanced pancreatic carcinoma

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

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