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Table 2 The correlations between the perfusion parameters measured by contrast-enhanced ultrasonography in the entire transverse tumor area and histological features (n = 12)

From: Antiangiogenic effects of pazopanib in xenograft hepatocellular carcinoma models: evaluation by quantitative contrast-enhanced ultrasonography

   Velocity-related parameters Volume-related parameters
   RWO RSI MTT ISI AUC BF
Necrosis index r -0.423 -0.656 0.139 -0.482 0.156 0.096
  P 0.028 0.000 0.491 0.011 0.436 0.634
Hypoxia index r -0.470 -0.656 0.08 -0.332 0.269 0.212
  P 0.024 0.001 0.72 0.122 0.215 0.330
Microvessel density r -0.212 0.002 -0.331 0.154 0.318 0.323
  P 0.287 0.990 0.092 0.444 0.106 0.100
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