This website sought to develop and validate model for predicting the risk of Ipsilateral Lateral lymph node metastasis,Level II lymph node metastasis,Level III lymph node metastasis,Level IV lymph node metastasis in clinically lymph node negative PTC's using random forest machine learning based model algorithms.Only input the patient's preoperative and intraoperative clinicopathological characteristics as the following to predict the likelihood of Lateral lymph node metastasis.
Note:"Age": Select based on the age at diagnosis."Tumor border": Indicate whether the thyroid capsule is involved (preoperative ultrasound)."Calcification": Specify the presence of microcalcifications (preoperative ultrasound)."Tumor internal vascularization": Indicate internal blood flow signals in the tumor (preoperative ultrasound)."Size": Input based on the intraoperative pathological tumor measurement."Extrathyroidal extension": Indicate if extrathyroidal invasion is present (intraoperative pathology).For central lymph node metastasis (intraoperative frozen pathology report), input both the number and proportion. Enter the proportion as a decimal between 0 and 1, and the number as the count of metastatic lymph nodes.
Note:"Age": Please select based on the age at diagnosis."Tumor Peripheral blood flow": Indicate the presence of peripheral blood flow signals around the tumor (preoperative ultrasound)."Size": Input the tumor size based on the intraoperative pathological measurement."Location": Select whether the tumor is located in the upper part."Extrathyroidal extension": Indicate if extrathyroidal invasion is present (intraoperative pathology).For central lymph node metastasis (intraoperative frozen pathology report), please input both the number and proportion. Enter the proportion as a decimal between 0 and 1, and the number as the count of metastatic lymph nodes.
Note:"Age": Select based on the age at diagnosis."Tumor border": Indicate whether the thyroid capsule is involved (preoperative ultrasound)."Calcification": Specify the presence of microcalcifications (preoperative ultrasound)."Tumor internal vascularization": Indicate internal blood flow signals in the tumor (preoperative ultrasound)."Size": Input based on the intraoperative pathological tumor measurement."Extrathyroidal extension": Indicate if extrathyroidal invasion is present (intraoperative pathology).For central lymph node metastasis (intraoperative frozen pathology report), input both the number and proportion. Enter the proportion as a decimal between 0 and 1, and the number as the count of metastatic lymph nodes.
Note:"Tumor border": Indicate whether the thyroid capsule is involved (preoperative ultrasound)."Calcification": Specify the presence of microcalcifications (preoperative ultrasound)."Tumor internal vascularization": Indicate internal blood flow signals in the tumor (preoperative ultrasound)."Size": Input based on the intraoperative pathological tumor measurement."Extrathyroidal extension": Indicate if extrathyroidal invasion is present (intraoperative pathology).For central lymph node metastasis (intraoperative frozen pathology report), input both the number and proportion. Enter the proportion as a decimal between 0 and 1, and the number as the count of metastatic lymph nodes.