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Fig. 4 —Graph shows Kaplan-Meier analysis to determine cumulative
patency of hepatic artery according to catheter placement method. 
=
long tapered catheter placement method, censored cases; 
= conventional
method, censored cases; X = fixed-catheter-tip method, censored cases. Patency
rates for patients treated with long tapered catheter placement method were
significantly higher than those for patients treated with conventional method
(p = 0.0066 using log-rank test) but were not statistically different
from those treated with fixed-catheter-tip method.
