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

Figure 2 Levels of dynamic contrast-enhanced magnetic resonance imaging parameters and tumor markers in different differentiation degrees. A: Comparison of volume transfer constant between low (L) and moderate + high (M + H) groups; B: Comparison of rate constant between L and M + H groups; C: Comparison of extravascular extracellular volume fraction between L and M + H groups; D: Comparison of carbohydrate antigen 19-9 (CA19-9) between L and M + H groups; E: Comparison of CA125 between L and M + H groups. M + H: Moderate + high; L: Low; Ktrans: Volume transfer constant; Kep: Rate constant; Ve: Extravascular extracellular volume fraction; CA19-9: Carbohydrate antigen 199; CA12-5: Carbohydrate antigen 125.