Diagnostic performance of dynamic contrast-enhanced magnetic resonance imaging parameters and serum tumor markers in rectal carcinoma prognosis

Figure 1 Levels of dynamic contrast-enhanced magnetic resonance imaging parameters and tumor markers in different T stages. A: Comparison of volume transfer constant between low and high stage groups; B: Comparison of rate constant between low and high stage groups; C: Comparison of extravascular extracellular volume fraction between low and high stage groups; D: Comparison of carbohydrate antigen 19-9 (CA19-9) between low and high stage groups; E: Comparison of CA125 between low and high stage groups. Ktrans: Volume transfer constant; Kep: Rate constant; Ve: Extravascular extracellular volume fraction; CA19-9: Carbohydrate antigen 199; CA12-5: Carbohydrate antigen 125.