Table 2 Correlation between TRG score and the IVIM-DWI parametric values.

From: Intravoxel incoherent motion diffusion-weighted imaging for discriminating the pathological response to neoadjuvant chemoradiotherapy in locally advanced rectal cancer

Parameter

r

P

preADC

−0.090

0.571

preD

−0.005

0.977

preD*

0.172

0.275

pref

0.357

0.020

postADC

0.204

0.194

postD

0.551

<0.001

postD*

0.112

0.481

postf

0.043

0.785

∆%ADC

0.252

0.107

∆%D

0.605

<0.001

∆%D*

0.017

0.914

∆%f

−0.046

0.774

  1. TRG,tumor regression grade; IVIM-DWI, intravoxel incoherent motion diffusion-weighted imaging; ADC, apparent diffusion coefficient; D, pure diffusion coefficient; D*, pseudo-diffusion coefficient; f, perfusion fraction.
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