Prediction of Lymph Node Metastasis in Patients With Thyroid Malignancy by a New Scale

1\. Patient characteristics: the inclusion criteria were as follows:1. patients with papillary thyroid cancer;2. minimum age of 16 years old and maximum age of 80 years old. Exclusion criteria:1. age less than 16 years old;2. postoperative pathology suggesting that there are other types of tumors, such as medullary carcinoma or undifferentiated carcinoma. 2,.Data collection: Investigators collected multifactorial data on about 1000 patients who had undergone previous thyroidectomy from 2021-2023, including gender, height, age, weight, BMI, diameter of the tumor in the primary focus, tumor limitation in the primary focus, lymph node metastasis, and tumor invasion, preoperative ultrasonographic manifestations, preoperative laboratory results, pathological results, and genetic testing results. From these, the available data were screened and retained for analysis. 3.Data analysis: According to the retained data after screening, classical machine learning algorithms will be used for feature selection to select the factors with greater correlation with the results, and then with the help of data visualization, the specific quantitative relationship between each factor and the results will be determined according to the distribution of the available data, and the quantitative scoring table will be created. 4. Clinical validation: The completed quantitative rating scale investigators will be validated in the clinic. Investigators will use the scale to score new patients to assess whether participants need prophylactic lymph node dissection, and then evaluate the accuracy of the quantitative scale according to the intraoperative or postoperative situation.