Clinical Study of Ultrasound Diagnosis of Breast Cancer.

With the improvement of medical standards, the problem of treating breast cancer is in front of people. However, there is no clear and uniform method for diagnosing breast cancer. In order to apply ultrasound diagnosis in clinical research of breast cancer, from August 2016 to August 2018, positron emission mammography (PEM) examination was performed on female volunteers to explore breast cancer sonogram. Features and their changes in sound image, summarizing the sonographer features of breast cancer to improve diagnostic sensitivity and accuracy. The results showed that the sensitivity of PEM to breast cancer diagnosis was 96.5%, specificity was 53.5%, accuracy was 88.9%, positive predictive value was 90.7%, and negative predictive value was 76.7%. Ultrasound showed sensitivity, specificity, accuracy, positive predictive value, and negative predictive value of 52.5%, 87.1%, 71.2%, 77.8%, and 68.2%, respectively. Ultrasonography has a high value in the diagnosis of lymph node metastasis. And ultrasound can not only detect the axillary fossa, supraclavicular lymph nodes, but also detect abnormalities in the internal mammary lymph nodes. Ultrasound missed diagnosis of lymph node metastasis may be related to obesity, complicated axillary structure, deep lymph node location, or small metastatic lesions, and no morphological changes in early lymph node metastasis. [ABSTRACT FROM AUTHOR]