Value of high-resolution magnetic resonance imaging and dynamic contrast-enhanced scanning in the preoperative diagnosis of rectal cancer in older patients

Figure 1 Preoperative staging of rectal cancer in older patients by high-resolution magnetic resonance imaging combined with dynamic contrast-enhanced magnetic resonance imaging. A: Accuracy of high-resolution magnetic resonance imaging (HR-MRI) combined with dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) in preoperative T staging of rectal cancer in older patients; B-F: Sensitivity and specificity of HR-MRI combined with DCE-MRI in preoperative T1 (B), T2 (C), T3 (D), T4 (E), and N (F)-staging of rectal cancer in older patients. ^aP < 0.05. HR-MRI: High-resolution magnetic resonance imaging; DCE-MRI: Dynamic contrast-enhanced magnetic resonance imaging; NS: Not significant.