Individualized nomogram development and evaluation
PRIMARY TUMOR, METASTASIS
According to the above results, an individualized nomogram based on the CBR Model’s risk factors was successfully developed for the visualization. The nomogram’s score and probability threshold for predicting LNM were 0.19 and 0.55, respectively (Fig. The nomogram was developed using the risk factors of CBR Model in the training set (Example of nomogram clinical use. The preoperative whole-body PET/CT of this 61-year-old female with negative CEA status indicated the primary tumor was located in the right upper lobe (purple circle), with hypermetabolic mediastinal–hilar LNs (red square and arrows), and without distant metastasis (