Intravoxel Incoherent Motion-Diffusion-Weighted MRI for Investigation of Delayed Graft Function Immediately after Kidney Transplantation
Table 3
IVIM parameters of 36 allograft kidneys.
A. EGF ()
B. DGF ()
C. DGF without complication ()
D. DGF with complication ()
Mann– Whitney test value (group A, B)
Kruskal- Wallis test value (group A, C, D)
Pair-wise test†
ROI of entire renal parenchyma
(μm2/msec)
1.89 [1.70-1.98]
1.73 [1.55-1.91]
1.76 [1.56-19.1]
1.65 [1.55-1.81]
<0.001
<0.001
A vs. C: 0.008 A vs. D: <0.001 C vs. D: 0.712
(μm2/msec)
32.0 [27.4-37.5]
32.6 [27.9-38.6]
31.5 [27.9-38.0]
34.7 [28.0-38.6]
0.697
0.225
(%)
16.8 [15.2-21.6]
12.5 [10.0-22.2]
13.9 [10.3-22.2]
12.3 [10.0-13.3]
<0.001
<0.001
A vs. C: 0.019 A vs. D: <0.001 C vs. D: 0.243
1.96 [1.81-2.06]
1.78 [1.59-1.94]
1.80 [1.65-1.94]
1.69 [1.59-1.86]
<0.001
<0.001
A vs. C: 0.003 A vs. D: <0.001 C vs. D: 0.480
ROI of graft renal cortex
(μm2/msec)
1.89 [1.74-2.01]
1.73 [1.53-1.94]
1.77 [1.56-1.94]
1.69 [1.53-1.85]
<0.001
0.003
A vs. C: 0.070 A vs. D: 0.002 C vs. D: 0.514
(μm2/msec)
32.3 [27.5-38.0]
30.6 [27.9-36.6]
30.5 [27.9-36.0]
32.1 [28.1-36.6]
0.159
0.245
(%)
16.4 [15.4-21.9]
12.5 [9.6-24.0]
14.8 [9.6-24.0]
11.4 [10.4-13.7]
<0.001
<0.001
A vs. C: 0.149 A vs. D: <0.001 C vs. D: 0.035
1.98 [1.87-2.09]
1.78 [1.56-2.03]
1.82 [1.65-2.03]
1.73 [1.56-1.89]
<0.001
<0.001
A vs. C: 0.018 A vs. D: <0.001 C vs. D: 0.361
ROI of graft renal medulla
(μm2/msec)
1.88 [1.64-1.99]
1.71 [1.39-1.79]
1.71 [1.54-1.79]
1.71 [1.39-1.79]
<0.001
0.001
A vs. C: 0.003 A vs. D: 0.002 C vs. D: 1.000
(μm2/msec)
34.1 [28.2-44.1]
34.8 [27.9-46.9]
33.9 [29.4-45.0]
38.4 [27.9-46.9]
0.296
0.144
(%)
16.7 [13.9-24.3]
13.2 [8.9-19.8]
12.8 [9.7-19.8]
13.2 [8.9-17.3]
<0.001
0.001
A vs. C: 0.003 A vs. D: 0.005 C vs. D: 1.000
1.97 [1.72-2.05]
1.74 [1.43-1.84]
1.76 [1.63-1.84]
1.73 [1.43-1.80]
<0.001
<0.001
A vs. C: 0.001 A vs. D: <0.001 C vs. D: 1.000
Values presented as median [interquartile range]; : slow diffusion coefficient; : fast diffusion coefficient; : perfusion fraction; : apparent diffusion coefficient; †pair-wise test using the Mann–Whitney -test with a Bonferroni correction; .
