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Table 1 Group 2 results. Two-way ANOVA followed by Bonferroni’s test for multiple comparisons comparing tumor volume, viscoelasticity |G*| and phase angle Y of tumors, NABT and the peripheral rim surrounding the tumor (“periphery”) between animals treated with B20 anti-VEGF antibody and untreated controls. NABT, normal appearing brain tissue; SD, standard deviation

From: Magnetic Resonance Elastography reveals effects of anti-angiogenic glioblastoma treatment on tumor stiffness and captures progression in an orthotopic mouse model

Results two-way ANOVA

Results Bonferroni’s post-test

 

sum of squares

degree of freedom

mean squares

F

p-value

 

mean 1 (SD)

mean 2 (SD)

adjusted p-value

tumor volume

 interaction

1883

2

941.4

64.79

<  0.0001

untreated

in mm3

in mm3

 

 time

3569

2

1785

122.8

<  0.0001

d6 vs. d8

25.6 (8.1)

46.2 (10.2)

<  0.0001

 treatment

7614

1

7614

50.17

0.0001

d6 vs. d10

25.6 (8.1)

71.6 (11.4)

<  0.0001

     

d8 vs. d10

46.2 (10.2)

71.6 (11.4)

<  0.0001

     

treated

   
     

d6 vs. d8

12.2 (4.4)

16.0 (4.0)

0.42

     

d6 vs. d10

12.2 (4.4)

19.6 (5.0)

0.02

     

d8 vs. d10

16.0 (4.0)

19.6 (5.0)

0.47

viscoelasticity |G*| tumor

 interaction

1.46

2

0.73

2.50

0.11

untreated

in kPa

in kPa

 

 time

7.49

2

3.74

12.87

0.0014

d6 vs. d8

6.8 (0.7)

6.0 (0.6)

0.6

 treatment

6.34

1

6.34

8.12

0.0215

d6 vs. d10

6.8 (0.7)

5.1 (0.7)

0.0005

     

d8 vs. d10

6.0 (0.6)

5.1 (0.7)

0.04

     

treated

   
     

d6 vs. d8

7.1 (0.7)

7.2 (0.3)

>  0.9

     

d6 vs. d10

7.1 (0.7)

6.4 (0.9)

0.2

     

d8 vs. d10

7.2 (0.3)

6.4 (0.9)

0.09

phase angle Y tumor

 interaction

0.01

2

0.01

3.16

0.07

untreated

normalized

normalized

 

 time

0.01

2

0.01

7.18

0.0078

d6 vs. d8

0.33 (0.02)

0.30 (0.01)

0.04

 treatment

0.01

1

0.01

12.84

0.0071

d6 vs. d10

0.33 (0.02)

0.29 (0.03)

0.02

     

d8 vs. d10

0.30 (0.01)

0.29 (0.03)

>  0.9

     

treated

   
     

d6 vs. d8

0.35 (0.02)

0.36 (0.03)

>  0.9

     

d6 vs. d10

0.35 (0.02)

0.33 (0.03)

0.15

     

d8 vs. d10

0.36 (0.03)

0.33 (0.03)

0.04

viscoelasticity |G*| NABT

 interaction

1.73

2

0.87

8.62

<  0.01

untreated

in kPa

in kPa

 

 time

2.43

2

1.21

12.06

<  0.01

d6 vs. d8

7.7 (0.22)

8.5 (0.37)

0.0045

 treatment

1.33

1

1.33

3.36

0.99

d6 vs. d10

7.7 (0.22)

7.2 (0.34)

0.08

     

d8 vs. d10

8.5 (0.37)

7.2 (0.34)

<  0.0001

     

treated

   
     

d6 vs. d8

7.7 (0.56)

7.9 (0.53)

0.8

     

d6 vs. d10

7.7 (0.56)

7.8 (0.56)

>  0.9

     

d8 vs. d10

7.9 (0.53)

7.8 (0.56)

>  0.9

phase angle Y NABT

 interaction

0.01

2

0.01

3.07

0.07

untreated

normalized

normalized

 

 time

0.01

2

0.01

0.27

0.76

d6 vs. d8

0.40 (0.02)

0.37 (0.04)

0.16

 treatment

0.01

1

0.01

0.56

0.47

d6 vs. d10

0.40 (0.02)

0.37 (0.04)

0.42

     

d8 vs. d10

0.37 (0.04)

0.37 (0.04)

>  0.9

     

treated

   
     

d6 vs. d8

0.37 (0.02)

0.39 (0.01)

0.88

     

d6 vs. d10

0.37 (0.02)

0.39 (0.02)

0.64

     

d8 vs. d10

0.39 (0.01)

0.39 (0.02)

>  0.9

viscoelasticity |G*| periphery

 interaction

0.48

2

0.24

0.55

0.59

 

untreated (in kPa)

treated (in kPa)

 

 time

3.6

2

1.8

4.16

0.04

untreated vs. treated d6

7.1 (0.54)

6.99 (0.31)

>  0.9

 treatment

0.17

1

0.17

0.22

0.65

untreated vs. treated d8

7.3 (0.89)

7.4 (0.59)

>  0.9

     

untreated vs. treated d10

6.3 (1.12)

6.7 (0.69)

0.9

phase angle Y periphery

 interaction

0.01

2

0.01

1.31

0.30

 

untreated

treated

 

 time

0.01

2

0.01

1.69

0.22

untreated vs. treated d6

0.33 (0.01)

0.34 (0.03)

>  0.9

 treatment

0.01

1

0.01

0.90

0.08

untreated vs. treated d8

0.31 (0.02)

0.34 (0.04)

0.47

     

untreated vs. treated d10

0.32 (0.02)

0.31 (0.01)

>  0.9