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Table 3 DKI and IVIM quantitative parameter histogram analysis results

From: The value of diffusion kurtosis imaging and intravoxel incoherent motion quantitative parameters in predicting synchronous distant metastasis of rectal cancer

Histogram index

D (95% CI)

K (95% CI)

f (95% CI)

Dfast (95% CI)

Dslow (95% CI)

Mean

0.855(0.808–0891)

0.831(0.778–0.872)

0.944(0.925–0.959)

0.964(0.952–0.974)

0.767(0.697–0.823)

Skewness

0.804(0.744–0.852)

0.740(0.663–0.801)

0.906(0.875–0.930)

0.963(0.950–0.972)

0.836(0.784–0.876)

Kurtosis

0.611(0.507–0.698)

0.709(0.625–0.777)

0.835(0.783–0.876)

0.961(0.948–0.971)

0.715(0.633–0.781)

10th

0.849(0.801–0.886)

0.898(0.864–0.923)

0.875(0.834–0.906)

0.999(0.998–0.999)

0.820(0.764–0.864)

25th

0.797(0.734–0.846)

0.869(0.826–0.901)

0.958(0.944–0.968)

0.827(0.773–0.869)

0.794(0.731–0.844)

50th

0.866(0.822–0.899)

0.910(0.881–0.933)

0.948(0.930–0.961)

0.886(0.848–0.914)

0.762(0.690–0.818)

75th

0.868(0.825–0.901)

0.874(0.833–0.905)

0.946(0.927–0.960)

0.921(0.895–0.941)

0.801(0.740–0.849)

90th

0.823(0.767–0.866)

0.906(0.875–0.930)

0.940(0.920–0.955)

0.831(0.778–0.872)

0.816(0.759–0.861)

  1. CI Confidence interval