Related Experiment Video
Updated: Jul 17, 2026
Comparison of Predictive Performance of Three Lymph Node Staging Systems in Colorectal Signet Ring Cell Carcinoma Based on Machine Learning Model
Published on: April 18, 2025
[Current validity of nomograms for prostate cancer staging]
Angel Borque Fernando1, Gerardo Sanz, Luís Mariano Esteban
1Servicio de Urología, Hospital Universitario Miguel Servet, Po Isabel la Católica 1 y 3, 50009 Zaragoza, España. aborque@comz.org
Objective:
[corrected] This paper presents a review of the concept of "nomogram" applied to prostate cancer, and specifically as a staging tool.
Methods/Results:
We describe the essential parameters for the evaluation of such type of predictive models: Calibration, discrimination and clinical usefulness. Such requisites are analyzed using a real clinical case in our clinical setting, comparing the "Partin's tables" and the "Miguel Servet University Hospital's nomogram". We demonstrate its correct calibration, discrimination and clinical usefulness after previous selection of proper cut points.
Conclusion:
The application of the predictive model to our clinical practice has achieved a clinical understaging of 17.3% after radical prostatectomy.
