Real-time virtual sonography visualization and its clinical application in biliopancreatic disease

Figure 4 The resulting evaluation levels of the real-time virtual sonography images were 12 excellent (pancreatic cancer, bile duct cancer, cholecystolithiasis and cholangiocellular carcinoma) and 3 good (pancreatic cancer and gallbladder cancer). A: Pancreatic cancer (excellent case); the positional relationships among the tumor and vessels [superior mesenteric artery (SMA) and superior mesenteric vein, (SMV)] were well evaluated; B: Pancreatic cancer (excellent case); the positional relationships among the tumor, vessels [portal vein (PV)], common bile dilatation (CBD), and main pancreatic duct (MPD) were well evaluated; C: Bile duct cancer (excellent case); the positional relationships among the tumor and vessels (SMA, SMV and PV) were well evaluated; D: Bile duct cancer (excellent case); the positional relationship between the tumor and CBD was well evaluated; E: Bile duct cancer (excellent case); the positional relationships among the tumor and vessels [proper hepatic artery (PHA), right hepatic artery (RHA), PV] were well evaluated; F: Bile duct cancer (excellent case); the positional relationships among the tumor and vessels [RHA, PV and inferior vena cava (IVC)] were well evaluated; G: Gallbladder cancer (good case); there was a gap in the positional relationships among the tumor and vessels.