Figure 2. Difference of recurrence-free survival (RFS) outcomes of patients with breast-conserving therapy according to preoperative magnetic resonance imaging (MRI). The blue line means the RFS of patients with preoperative MRI. The green line means RFS of patients without preoperative MRI. There was no significant difference in terms of survival outcome (5 yr RFS of patients with preoperative MRI vs. patients without preoperative MRI was 95.7% vs. 97.0%, p=0.507).