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Fig. 6. —Graph shows congestion index of main portal vein measured before and after transjugular intrahepatic portosystemic shunt (TIPS) creation. Note significant decrease of congestion index after TIPS creation. Bottom and top of rectangular boxes are 25th and 75th percentiles, length of box represents interquartile range (IQR) and contains 50% of data. Central line in box is median (50th percentile). Lower (or upper) adjacent value displayed as T-shaped line represents largest observation that is equal to 25th percentile minus IQR (or 75th percentile plus IQR). Circles represent observations outside adjacent values.