Predictive value of magnetic resonance imaging parameters combined with tumor markers for rectal cancer recurrence risk after surgery

Figure 2 Correlation heat maps of demographic features, magnetic resonance imaging features, and levels of tumor markers of patients after rectal cancer surgery. ^aP < 0.05. BMI: Body mass index; MTL: Maximum tumor length; mrT staging: Magnetic resonance based T staging; mrN staging: Magnetic resonance based N staging; CRM: Circumferential resection margin; EMVI: Extramural vascular invasion; CEA: Carcinoembryonic antigen; CA: Carbohydrate antigen.