Today, hysteroscopy, ultrasound and magnetic resonance imaging are most often used in clinical practice for the diagnosis of adenomyosis. However, the high frequency of diagnostic errors (from 20 to 40%), depending on the experience of the operator and equipment, detailing the structure of the myometrium and the parameters of ultrasound differentiation of adenomyosis, requires the search for new optimal diagnostic methods. The purpose of our study was to determine the parameters of ultrasound elastography of the shear wave in patients with adenomyosis and / or hyperplastic processes of the endometrium. Material and methods. The study included 128 patients aged from 27 to 53 years (mean 39.4 ± 8.6). The first group included 38 (29.6%) patients diagnosed with grade I-II adenomyosis, the second group had 41 (32.1%) patients with a combination of grade I-II adenomyosis with endometrial hyperplastic processes and / or uterine leiomyoma, the third group consisted of 39 (30.5%) women only with hyperplastic processes of the endometrium. The control fourth group included 10 (7.8%) women without endometrial pathology, who sought women's advice on primary infertility. Results and discussion. When performing shear wave elastography, significant differences in the color of myometrial mapping were found between patients of the first, third and control groups (p <0.001). Unchanged myometrium in all patients of the control group was represented by shades of blue, and the staining was uniform in 9 (90%) subjects. In patients of the first group, the myometrium was stained with shades of red in 31 (81.63%) cases and shades of yellow in 3 (7.8%) cases; in 23 (60.5%) cases there was inhomogeneous red staining and in 14 (36.8%) cases staining was inhomogeneous in shades of red-yellow-light blue. When performing elastography in patients of the second group in the projection of the myoma was more often detected staining in shades of red in 20 (48.8%) cases, yellow in 6 (14.6%) and light blue in 3 (7.3%) cases; in 28 (68.3%) cases there was inhomogeneous red staining and in 19 (46.3%) cases staining was inhomogeneous in shades of red-yellow-light blue. In the third group in the projection of the leiomatous node was more often determined by staining in shades of red in 22 (56.4%) cases, yellow in 8 (20.5%) and light blue in 6 (15.4%) cases, colors on the background of the blue myometrium; inhomogeneous staining of myomatous nodes was detected in 31 (79.5%), and homogeneous staining was in 7 (17.9%) cases. Unchanged myometrium in the control group was characterized by significantly lower values of the Young's modulus 25.2 (17.9-34.1 kPa), while in the group of adenomyosis the average value of Emean reached 71.8 (17.9-281.3 kPa), was maximally high and significantly different from the indicators of the control group and from the indicators of group 3 patients 29.6 (13.5-58.9 kPa). The rates of patients of the second group, in whom grade I-II adenomyosis was combined with endometrial hyperplastic processes and / or uterine leiomyoma 54.7 (15.6-133.9 kPa) were also significantly higher than the values of the control group and the third group. Conclusion. Shear wave ultrasound is a minimally invasive and accessible method of high-quality preoperative diagnosis, necessary to avoid hysterectomy and clarify the diagnosis without surgery, which is recommended for use in practice to improve the accuracy of diagnosis of adenomyosis

Keywords: ultrasonic elastography of shear wave, adenomyosis, endometriosis, endometrial hyperplastic processes

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