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Table 2 Mean volumes of delineation between post-CT and pre-MRI of 6 sequences

From: Inter-observer variations of the tumor bed delineation for patients after breast conserving surgery in preoperative magnetic resonance and computed tomography scan fusion

Volume

CTV(mean ± SD)

P2

PTV (mean ± SD)

P2

CT

33.1 ± 14.09

 

194.51 ± 53.11

 

T1W

28.76 ± 13.49

1.5 × 10−5

150.27 ± 54.47

2 × 10−6

T2W

27.73 ± 13.06

4 × 10−6

146.3 ± 49.33

1 × 10−6

T2-SPAIR

29.16 ± 12.51

2.5699 × 10−2

150.68 ± 47.19

1.12 × 10−4

DWI

29.25 ± 12.59

5.98 × 10−4

154.57 ± 45.59

7 × 10−6

dyn-eTHRIVE

27.15 ± 11.33

3.611 × 10−3

144.28 ± 41.83

4.9 × 10−5

sdyn-eTHRIVE

24.28 ± 10.63

2.72 × 10−4

136.04 ± 38.62

1.7 × 10−5

F

35.764

 

152.695

 

P1

8.041 × 10−11

 

6.6615 × 10−18

 
  1. P value1 were calculated by two-way analysis of Scheirer-Ray-Hare
  2. P value2 were calculated by paird-samples T test to assess the difference between post-CT and pre-MRI sequences