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Egyptian Journal of Radiology and Nuclear Medicine

Table 6 Agreement between IVIM parameters and pathological staging

From: Role of intravoxel incoherent motion MRI in diagnosis and assessment of invasiveness of urothelial bladder carcinoma

IVIM parameters

Pathology

MIBC (N = 56)

NMIBC (N = 27)

Kappa agreement

Test

N

%

N

%

 

X2

p

Mass D < 0.9

48

85.7

0

0.0

K = 0.796

54.88

 < 0.001*

Mass ADC < 1.09

49

87.5

13

48.1

K = 0.418

14.92

 < 0.001*

wall beside mass D < 0.97

40

71.4

10

37.0

K = 0.325

8.99

0.003*

  1. MIBC muscle invasive bladder cancer, NMIBC non-muscle invasive bladder cancer, MRI magnetic resonant imaging, IVIM Intravoxel Incoherent Motion, D true diffusion coefficient, ADC apparent diffusion coefficient standard, x2 = chi-square test; *p < 0.05
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