Fig. 6
From: A CT-based radiomics nomogram for predicting histologic grade and outcome in chondrosarcoma

Kaplan-Meier estimate of recurrence-free survival (RFS) by dichotomized chondrosarcoma (CS) grade in patients with low-grade CS and high-grade CS. (a) Pathological grade in training group. (b) Nomogram-predicted grade in the training group; (c) Pathological grade in test group; (d) Nomogram-predicted grade in test group