Clinical Research
Evaluation of combining transvaginal conventional ultrasonography and shear wave elastography on the diagnosis of endometrial cancer
Hui Ma, Zongli Yang, Fengming Zhang, Li Yang, Qiuying Fu, Peng Yang, Shibao Fang
Published 2019-04-25
Cite as Chin J Ultrasonogr, 2019, 28(4): 330-335. DOI: 10.3760/cma.j.issn.1004-4477.2019.04.010
Abstract
ObjectiveTo evaluate the combination of transvaginal conventional ultrasonography and shear wave elastography (SWE) on the diagnosis of endometrial cancer, and establish a predictive Logistic regression model.
MethodsClinical information collection, transvaginal conventional ultrasonography, and SWE check were performed in 112 patients who were post-menopausal vaginal bleeding with ≥5 mm thick endometrium. The Emax and Emean of Young′s modulus for the endometrium were obtained. Pathology was used as the gold standard, ROC curve was plotted, which could be used to evaluate the Young′s modulus on the diagnostic effectiveness on endometrial cancer. Single factor analysis and bring logistic regression methods were applied to assess the values of the clinical variables, transuaginal conventional ultrasonography variables, and Young′s modulus in the identification of endometrial cancer.
ResultsIn 112 cases of endometrial lesions diagnosed by pathology, there were 84 cases of benign lesions (benign group) and 28 cases of cancer(malignant group). Both Emax and Emean in malignant group were larger than benign group[(53.00±16.07)kPa vs (31.99±13.89)kPa, (27.25±9.28)kPa vs (19.94±10.37)kPa, all P<0.001]. In the logistical regression analysis, body mass index, endometrial thickness, blood flow grading and Young′s modulus were identified as independent risk factors for endometrial cancer. The accuracy, sensitivity and specificity of the logistic regression model in the prediction of endometrial cancer were 89.29%, 82.14%, and 91.67%, respectively. The area under the ROC curve was 0.928.
ConclusionsTransvaginal conventional ultrasonography combined SWE technique has an important value in the diagnosis of endometrial cancer.
Key words:
Ultrasonography; Shear wave elastography; Endometrial cancer; Young′s modulus; Logistic regression
Contributor Information
Hui Ma
Department of Ultrasound, the Affiliated Hospital of Qingdao University, Qingdao 266061, China
Department of Ultrasound, Zibo Maternal and Children Health Hospital, Zibo, Shandong Province 255000, China
Zongli Yang
Department of Ultrasound, the Affiliated Hospital of Qingdao University, Qingdao 266061, China
Fengming Zhang
Department of Ultrasound, Zibo Maternal and Children Health Hospital, Zibo, Shandong Province 255000, China
Li Yang
Department of Ultrasound, Zibo Maternal and Children Health Hospital, Zibo, Shandong Province 255000, China
Qiuying Fu
Department of Ultrasound, Zibo Maternal and Children Health Hospital, Zibo, Shandong Province 255000, China
Peng Yang
Department of Pathology, Zibo Maternal and Children Health Hospital, Zibo, Shandong Province 255000, China
Shibao Fang
Department of Ultrasound, the Affiliated Hospital of Qingdao University, Qingdao 266061, China