Changes in Distribution of Splenic Venous Flow in the Patients with Cirrhotic Liver

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We studied the distribution of splenic venous flow in the liver of patients with normal liver (NL group, n=15), chronic hepatitis (CH group, n=8), and liver cirrhosis (LC group, n=13) with the technique of scintiphotosplenoportography (SSP) after percutaneous intrasplenic injection of Technetium-99m-diethylenetriaminepentaacetic asid-galactosyl-human serum albumin (99mTc-GSA). The index of splenic venous flow volume per unit hepatocytes (V_<unit>) was calculated in each hepatic lobe. To compare V value of the left lobe (VL_<unit>) with that of the right lobe (VR_<unit>), predominant index of the left lobe (L/R index) was defined as L/R index=VL_<unit>/VR_<unit>. The median (interquartile range) of L/R index of LC group; 1.22 (1.06-1.70) was significantly higher than that of NL group; 0.83 (0.66-0.92), p<0.001 and CH group; 0.79 (0.69-0.92), p<0.001. L/R index reflects the change of portal hemodynamics in cirrhotic liver and is useful for discrimination between noncirrhosis and cirrhosis. These results suggest that in the liver exposed to continuous damages, splenic venous blood promotes liver fibrosis in the right lobe and eventually flows more into the left lobe with milder fibrosis.