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Egyptian Journal of Radiology and Nuclear Medicine

Table 4 bpMRI parameters (IVIM and ADC) in the studied groups

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

Variable

MIBC (N = 56)

NMIBC (N = 27)

Test

p value

Mass D (× 10−3 mm2/s)

0.8 ± 0.1

1.1 ± 0.1

Z = 6.910

 < 0.001*

Mass D* (× 10−3 mm2/s)

6.9 ± 3.4

10.2 ± 8.9

Z = 1.564

0.118

Mass F (%)

16.9 ± 8.9

17.7 ± 9.7

Z = 0.170

0.865

Mass ADC (× 10−3 mm2/s)

0.9 ± 0.2

1 ± 0.2

Z = 3.248

0.001*

Wall beside mass D (× 10−3 mm2/s)

0.9 ± 0.2

1.1 ± 0.4

Z = 2.728

0.006*

Wall beside mass D* (× 10−3 mm2/s)

8.8 ± 6.9

13.7 ± 12.5

Z = 1.570

0.116

Wall beside F (%)

23.4 ± 13.8

18.6 ± 13.6

Z = 1.416

0.157

wall beside mass ADC (× 10−3 mm2/s)

1 ± 0.2

1.1 ± 0.2

Z = 0.554

0.579

  1. MIBC muscle invasive bladder cancer, NMIBC non-muscle invasive bladder cancer, MRI magnetic resonant imaging, IVIM Intravoxel Incoherent Motion, D true diffusion coefficient, D* pseudo-diffusion coefficient, ADC apparent diffusion coefficient standard, f perfusion fraction, Z = Mann Whitney test; *p < 0.05
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