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第45卷第10期
               ·1480 ·                           南 京    医 科 大 学 学         报                        2025年10月


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              期临床妊娠组的子宫结合带D 90th高于未妊娠组(P=                       成功的潜在生物学指标。
              0.032)。子宫内膜、肌层的IVIM直方图参数及子宫                       2.4  两组间ADC参数的比较
              结合带 Dmean、D10th、D90th、fmean、f90th在两组间均无统计学             子宫内膜、结合带及肌层的ADC直方图参数在
              差异(P > 0.05,表 3,图 2)。图 3 是胚胎质量均为优                 两组患者间差异均无统计学意义(P > 0.05,表3)。
              质胚胎的 2 例入组患者,早期临床妊娠组的子宫结                          2.5  临床特征及IVIM⁃DWI参数预测FET患者早期
              合带的D mean和D 90th高于未妊娠组,提示子宫结合带                    妊娠成功的效能评估
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              的 D mean和 D 90th值有望成为 FET 患者早期临床妊娠                     胚胎等级(优质胚胎)预测 FET 患者妊娠成功
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                                             表1 临床妊娠组及未妊娠组临床特征比较
                    Table 1 Comparison of clinical characteristics between the clinical pregnancy group and non⁃pregnant group
                           Variable               Clinical pregnancy group(n=42)  Non⁃pregnant group(n=28)  P
                 Age[years,(x ± s)]                      32.86 ± 3.89               32.79 ± 4.29        0.943
                 BMI[kg/m ,M(P25,P75)]                022.15(19.25,25.33)       022.50(20.75,24.82)     0.569
                        2
                 Infertility duration[years,M(P25,P75)]  0003.3(2.3,4.5)        0003.3(2.4,4.3)         0.952
                 Infertility causes[n(%)]                                                               0.198
                   Primary                            000.22(52.3)              000.19(67.9)
                   Secondary                          000.20(47.6)              000.09(32.1)
                 Male factor[n(%)]                                                                      1.000
                   Present                            0000.5(11.9)              000.03(10.7)
                   Absent                             000.37(88.1)              000.25(89.3)
                 Endometrial preparation[n(%)]                                                          0.270
                   Natural Cycle                      000.14(33.3)              000.13(46.4)
                   Artificial Cycle                   000.28(66.7)              000.15(53.6)
                 Previous heproductive history[n(%)]                                                    0.947
                   Present                            000.06(14.3)              000.05(17.9)
                   Absent                             000.36(85.7)              000.23(82.1)
                 E2[pmol/L,M(P25,P75)]                440.90(296.75,740.13)     671.05(349.33,927.35)   0.270
                 P[nmol/L,M(P25,P75)]                 039.01(25.95,52.00)       043.34(27.56,66.91)     0.401
                 Embryo transfer stage[n(%)]                                                            0.031
                   Cleavage stage                     000.14(33.3)              000.03(10.7)
                   Blastocyst stage                   000.28(66.7)              000.25(89.3)
                 Embryo quality[n(%)]                                                                   0.011
                   High⁃quality                       000.32(76.2)              000.13(46.4)
                   Suboptimal                         000.10(23.8)              000.15(53.6)



                                            表2  临床妊娠组及未妊娠组MRI常规特征比较
                     Table 2  Comparison of MRI routine features between the clinical pregnancy group and non⁃pregnant group
                             Variable                Clinical pregnancy group(n=42)  Non⁃pregnant group(n=28)  P
                Endometrialthickness[mm,M(P25,P75)]        8.2(6.5,11.5)00           7.6(5.5,9.4)000     0.17
                Junctional zone thickness[mm,M(P25,P75)]   7.6(5.5,9.4)000           5.1(4.3,6.0)000     0.22
                Myometrial thickness(mm,x ± s)              11.38 ± 2.73              11.43 ± 2.37       0.94
                Cervical length[mm,M(P25,P75)]           27.00(25.50,30.40)0       30.15(25.80,32.75)0   0.12
                Maximumendometrial area[mm ,M(P25,P75)]  325.00(235.50,415.60)    286.60(183.05,362.55)  0.23
                                       2
                Endometrial T2WI signal ratio(x ± s)        04.34 ± 0.90              04.47 ± 0.93       0.55
                Uterine position[n(%)]                                                                   0.77
                  Anteverted                               21(50.0)0000,             15(53.6)0000,
                  Retroverted                              21(50.0)0000,             13(46.4)0000,
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