Figure 4

Changes of dynamic parameters of arterial blood flow in tumors by color Doppler flow imaging. PSV: peak systolic velocity; RI: resistive index, RI = PSV-EDV/PSV (EDV: end diastolic velocity). ^▫P < 0.05 vs control group; ^□P < 0.05 vs gemcitabine group; ^■P < 0.05 vs ginsenoside Rg3 group.