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Table 2 Number of pathology results of benign and malignant endometrial lesions and its mean values of DW-ADC, DT-FA, and DT-ADC (MD)

From: Diagnostic value of diffusion-weighted imaging (DWI) and diffusion tensor imaging (DTI) in differentiation between normal and abnormally thickened endometrium: prospective study

Benign pathology No. Mean DW-ADC ± SD Mean DT-FA ± SD Mean DT-MD ± SD
 Endometrial polyp 2
(9.5%)
1.615 ± 0.05233 0.4595 ± 0.07990 1.4645 ± 0.01768
 Sub-mucous fibroid 2
(9.5%)
1.284 ± 0.13011 0.2665 ± 0.01768 1.4140 ± 0.02121
 Endometrial adhesion 1
(4.8%)
1.452 ± 0.0 0.3020 ± 0.0 1.4210 ± 0.0
 Tamoxifen-induced hyperplasia 6
(28.6%)
1.522 ± 0.16364 0.2878 ± 0.04794 1.4295 ± 0.05386
 Simple hyperplasia without cellular atypia (cystic) 5
(23.8%)
1.651 ± 0.16233 0.2242 ± 0.09106 1.3292 ± 0.03167
 Complex hyperplasia without cellular atypia (adenomatous) 3
(14.3%)
1.629 ± 0.09531 0.3490 ± 0.02464 1.2927 ± 0.01531
 Atypical hyperplasia 2
(9.5%)
1.645 ± 0.22981 0.2365 ± 0.04596 1.1945 ± 0.01768
Total 21
100%
1.562 ± 0.17016 0.2915 ± 0.08694 1.3651 ± 0.08747
Test of significance   P1 = 0.1799 P1 = 0.014* P1 < 0.001*
Malignant pathology No. Mean DW-ADC ± SD Mean DT-FA ± SD Mean DT-MD ± SD
 Endometrioid adenocarcinoma G1 8
(40%)
0.9899 ± 0.12611 0.3441 ± 0.05055 0.9658 ± 0.07447
 Endometrioid adenocarcinoma G2 4
(20%)
0.8635 ± 0.06998 0.2620 ± 0.05373 0.7460 ± 0.08465
 Endometrioid adenocarcinoma G3 2
(10%)
0.6985 ± 0.02758 0.4060 ± 0.10889 0.4420 ± 0.04667
 Papillary serous carcinoma 2
(10%)
0.6275 ± 0.05869 0.2355 ± 0.05586 0.4635 ± 0.00778
 Mixed type adenocarcinoma (endometrioid and serous) 2
(10%)
0.7155 ± 0.02051 0.2385 ± 0.06293 0.4155 ± 0.02051
 Clear cell carcinoma 1
(5%)
0.897 ± 0.0 0.1480 ± 0.0 0.4970 ± 0.0
 Endometrial stromal sarcoma 1
(5%)
0.912 ± 0.0 0.2800 ± 0.0 0.4400 ± 0.0
Total 20 0.8633 ± 0.15753 0.2994 ± 0.08230 0.7144 ± 0.24580
Test of significance   P2 = 0.0044* P2 = 0.018* P2 < 0.001*
  1. P1: for differentiation between different benign lesions. P2: for differentiation between different malignant lesions