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Abstract To explore the clinical value of abdominal and transvaginal ultrasound for diagnosing the endometrial cancer and its myometrial invasion of women. Methods: From February 2021 to February 2023, 80 women with endometrial cancer and 80 healthy women who had accepted physical examination were selected as the research objects. The abdominal ultrasound and transvaginal ultrasound were performed on all of these women. The results of the pathological examination of the women with endometrial cancer were used as the gold standard. The effect of single and combined application of abdominal ultrasound and transvaginal ultrasound for diagnosing the endometrial cancer and its myometrial invasion degree was compared and analyzed. The observation indicators in this study included the accuracy, the sensitivity, the specificity and the area under the receiver operating characteristic (ROC) curve. Results: The accuracy of the transvaginal ultrasound alone, the abdominal ultrasound alone, and the combined the transvaginal and abdominal ultrasound for diagnosing the endometrial cancer were 75.6%, 88.8% and 98.1%, respectively, the sensitivity of which were 75.0%, 87.5% and 97.5%, respectively, the specificity of which were 76.3%, 90.0% and 98.8%, respectively, and the AUC of which were 0.756, 0.888 and 0.981, respectively. The accuracy, the sensitivity, the specificity and the AUC of the transvaginal ultrasound alone, the abdominal ultrasound alone, and the combined the transvaginal and abdominal ultrasound for diagnosing the endometrial cancer had increased gradually. The accuracy of the transvaginal ultrasound alone, the ultrasound alone, and the combined the transvaginal and transabdominal ultrasound for diagnosing the myometrial invasion degree of the endometrial cancer were 62.5%, 82.5% and 97.5%, respectively, the sensitivity of which were 64.0%, 82.0% and 96.0%, respectively, and the specificity of which were 0.620, 0.827 and 0.980, respectively. The accuracy, the sensitivity and the specificity of the transvaginal ultrasound alone, the abdominal ultrasound alone, and the combined the transvaginal and abdominal ultrasound for diagnosing the myometrial invasion degree of the endometrial cancer had increased gradually (all P<0.05). Conclusion: Both abdominal ultrasound and transvaginal ultrasound for diagnosing the endometrial cancer and its myometrial invasion degree of the women have high application efficiency. The diagnostic efficiency of the transvaginal ultrasound alone, the ultrasound alone, and the combined the transvaginal and abdominal ultrasound for diagnosing the endometrial cancer and its myometrial invasion of the women have increased gradually.
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