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第45卷第10期
               ·1482 ·                           南 京    医 科 大 学 学         报                        2025年10月


                    (×10 mm /s)                                 基于结合带D mean分层与胚胎质量(优质胚胎/次优胚
                                                                            *
                           2
                        -3
                        80
                                                                                                            *
                                                                胎)构建4组分析队列可以得出,高子宫结合带D mean
                        mean  60                               (D mean≥43.33×10 mm /s)联合优质胚胎组临床妊娠
                                                                               -3
                                                                                    2
                                                                   *
                       Junctional zone D *  40                 (D mean< 43.33×10 mm /s)联合次优胚胎组临床妊娠
                                                                率最高(临床妊娠 vs.未妊娠:73% vs. 27%),组间差
                                                                                                            *
                                                                异接近统计学显著性(P=0.07);低子宫结合带 D mean
                                                                               -3
                                                                   *
                                                                                    2
                        20
                                                                率最低(临床妊娠vs. 未妊娠:17% vs. 83%),组间差
                         0                                      异有统计学意义(P <0.001,图5)。
                        Clinical pregnancy group Non⁃pregnant group
                      *
                 The D mean value of the junction zone in the clinical pregnancy  3  讨 论
              group was higher than that in the non⁃pregnant group(P=0.029).
                                                    *
              图 2  早期临床妊娠组与未妊娠组子宫结合带 D mean比较的                       FET 技术为不孕不育患者提供了更多次移植、
                   箱式图                                          妊娠机会,超过50%的早期妊娠因着床失败而导致
              Figure 2  Box plot comparing junctional zone D mean between  流产,影响胚胎早期着床的因素较为复杂,包括临
                                                   *
                      the early clinical pregnancy group and non ⁃  床激素水平、胚胎质量、内膜容受性等,子宫内膜容
                      pregnant group                            受性的准确评估,是辅助生殖技术的难点与重点。
              娠成功的独立危险因素(OR=0.20,P=0.003,表 5)。                  超声是目前临床应用最广泛的评估方法,但其对技
                                                                      *
                                □ Clinical data      □ MRI parameters(the D of the junction zone)
                                                                                                2
                                                                                   *
                                                                                            -3
                                BMI:20.5 kg/m 2                                   D mean=46.69×10 mm /s
                                                                                                2
                                                                                             -3
                                                                                   *
                                Primary infertility                               D 90th=192.06×10 mm /s
                            A   Natural cycle
                                Blastocyst stage
                                Successful pregnancy
                                 BMI:22.9 kg/m 2                                    D mean=39.59×10 mm /s
                                                                                                 2
                                                                                              -3
                                                                                     *
                                 Primary infertility                                 *       -3  2
                                                                                    D 90th=54.40×10 mm /s
                            B    Artificial cycle
                                 Blastocyst stage
                                 Non⁃pregnancy
                 A:showed a woman diagnosed with primary infertility who achieved early clinical pregnancy with high⁃quality embryo. MRI parameters of the junc⁃
                                                                                       2
                                                           2
                                  -3
                                                                                   -3
                           *
                                                                           *
                                                                                                        -3
                                                                                                            2
                                      2
                                                       -3
              tional zone:mean D :46.69×10 mm /s(critical value:43.33×10 mm /s);90th percentile of D :192.06×10 mm /s(critical value:54.48×10 mm /s).
              Both parameters exceeded the critical values. B:showed a woman diagnosed with primary infertility who had an early clinical pregnancy failure and the
                                                                                              -3
                                                                         -3
                                                                                                  2
                                                                            2
                                                                 *
              embryo quality was high quality. MRI parameters of the junctional zone:mean D :39.59×10 mm /s(critical value:43.33×10 mm /s);90th percentile
                        -3
                 *
                                                2
                           2
                                             -3
              of D :54.40×10 mm /s(critical value:54.48×10 mm /s). Both parameters were below the critical values.
                                             *
                              图3 子宫结合带D mean及D 90th在2例优质胚胎FET患者不同妊娠结局中的预测价值
                                                   *
               Figure 3  Predictive value of D meanand D 90th in different pregnancy outcomes of two FET patients with high quality embryo
                                               *
                                        *
                                                        *
                                表4   胚胎质量、子宫结合带D 直方图参数预测早期临床妊娠结局的效能比较
                                                                *
              Table 4  Comparison of embryo quality and the junctional zone D histogram parameters in predicting early clinical pregnancy
                      outcomes
                     Variable           AUC(95%CI)          Cut⁃off value    Sensitivity(%)     Specificity(%)
                  Embryo quality       0.65(0.51-0.78)                           53.6               73.2
                             *         0.68(0.55-0.81)             -3
                  Junction zone D mean                      43.33×10             73.8               67.9
                             *                                     -3
                  Junction zone D 90th  0.65(0.52-0.79)      54.48×10            61.9               67.9
                  Combined model       0.73(0.61-0.85)                           82.1               60.0
                 Combined model:integrated model combining embryo quality and junctional zone mean D . *
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