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| Effect of magnetic resonance-perfusion weight imaging parameters in the assessment of endometrial receptivity of infertility women with adenomyosis |
| Second Affiliated Hospital of Shaanxi University of Chinese Medicine, Shaanxi Province, 712000 |
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Abstract To evaluate the value of magnetic resonance-perfusion weight imaging (MR-PWI) parameters in the assessment of endometrial receptivity of infertility women with adenomyosis. Methods: 53 infertility women with adenomyosi from June 2019 to June 2021 were collected in study group retrospectively. 50 normal women with the same age and normal reproductive function were selected in control group during the same period. MRI perfusion imaging was performed for the women in the two groups during the 19th-22nd days of menstrual cycle. The endometrial and subendometrial perfusion parameters, such as positive enhancement integral (PEI), maximum slope of increase (MSI), and mean time to enhance (MTE) of the women in the two groups were recorded. The MRI features and the perfusion parameters of endometrial and subendometrial blood flow of the women in the study group were analyzed. Results: There were 33 cases with diffuse adenomyosis in these 53 women in the study group, and the T2WI scan showed that the diffuse homogeneous or uneven thickening of uterine junctional zone in these 33 women. The thickness of uterine junctional zone (29.66±3.16 mm) of the women in the study group was significantly thicker than that (10.06±1.74mm) of the women in the control group (P＜0.001). A total of 42 lesions of the women in the study were found, which showed middle intensity of T1WI sequences, and hypointensity with scattered dot-like high signal inside of T2WI sequences. There were 20 cases with localized adenomyosis in the study group, and these women had limited enlargement of the body or bottom of the uterus and had thickened junctional zone in the localized adenomyosis. The thickness of uterine junctional zone (22.39±3.74mm) of the women in the study group was significantly thicker than that of the women in the control group (P＜0.001). 27 lesions in these 20 cases with localized adenomyosis were identified , which showed the middle intensity of T1WI and a mass shadow similar to the signal of the junctional zone of T2WI. The uterine volume of the women in the study was significantly bigger than thata of the women in the control group, the endometrial thickness of the women in the study was significantly thinner, the values of MR-PWI perfusion parameters, such as PEI and MSI, in the endometrium and in sub-endometrium of the women in the study were significantly lower, and the MTE value of the women in the study was significantly higher (all P＜0.05). Correlation analysis showed that endometrial thickness of the women in the study was positively correlated with their endometrial thickness and their values of MR-PWI perfusion parameters, such as PEI and MSI (P＜0.05), while had no correlation with their MTE value (P＞0.05). Conclusion: MR-PWI parameters can be used as an auxiliary indexes to judge the prognosis of embryo implantation of the infertility women with adenomyosis.
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