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Comparative Results of Doppler Sonography After TIPS Using Covered and Bare Stents

Douglas Lake1,2, Marcelo Guimaraes2, Susan Ackerman1, Christopher Hannegan2, Claudio Schonholz2, J. Bayne Selby2 and Renan Uflacker2

1 Division of Ultrasound, Medical University of South Carolina, 169 Ashley Ave., Charleston, SC 29425.
2 Division of Interventional Radiology, Medical University of South Carolina, Charleston, SC 29425.


Figure 1
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  		Fig. 1 —Scatterplot shows comparison of hepatic venous velocities between Viatorr (W. L. Gore and Associates) group and Wallstent (Boston Scientific) group. Data presented as mean ± SD for each group. Normal sonography data points are shown in green and abnormal sonography data points are shown in blue. Note nine data points at value 0 in Viatorr group.

 

Figure 2
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  		Fig. 2A —45-year-old man with biopsy-proven nonalcoholic steatohepatitis. Immediate post-TIPS image shows patent TIPS and prominent left gastric varix.

 

Figure 3
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  		Fig. 2B —45-year-old man with biopsy-proven nonalcoholic steatohepatitis. Doppler sonogram obtained 1 day after TIPS procedure shows no flow in shunt. Normal flow in inferior vena cava is shown.

 

Figure 4
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  		Fig. 2C —45-year-old man with biopsy-proven nonalcoholic steatohepatitis. Power Doppler sonogram obtained 1 day after TIPS shows no demonstrable velocity in hepatic venous end of shunt.

 

Figure 5
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  		Fig. 2D —45-year-old man with biopsy-proven nonalcoholic steatohepatitis. Doppler sonogram obtained 12 days after TIPS procedure shows patency and normalized velocities at hepatic venous end of shunt.

 

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