fig8

Figure 8. Dynamic contrast-enhanced experiments for pancreatic tumor and AP taking muscle as a reference. DCE was performed using gradient-echo protocol with a temporal resolution of 4.1 s. CTC were measured from region of tumor and edematous pancreatitis. Pancreatic tumor was characterized with rapid wash-in enhancement followed by fast wash-out phase, while edematous pancreatitis presented much slower and continuously uptake. Parameters calculated from standard Tofts model indicated a much lower transfer constant (Ktrans) and higher fraction volume (ve) in edematous pancreas, compared to pancreatic tumor. AP: acute pancreatitis; CTC: concentration-time-curves; DCE: dynamic contrast-enhanced