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Hemodynamic changes after transcatheter arterial embolization of hepatocellular carcinomas
P Taourel1, M Dauzat, M Lafortune
1Medical Imaging Department, Hopital Saint-Eloi, Montpellier, France.
Purpose:
To evaluate the serial hemodynamic changes that occur after transcatheter arterial embolization (TAE) of hepatocellular carcinomas (HCCs).
Materials And Methods:
Twenty patients with HCCs treated with TAE were evaluated with color and duplex Doppler sonography before, immediately after, and 2 days after TAE. The changes in hepatic artery and portal vein velocity and flow were evaluated.
Results:
The portal venous velocity and flow did not change significantly after TAE. The peak systolic velocity in the proximal hepatic artery decreased significantly (P < .01) immediately after TAE then returned to baseline values 2 days after TAE; the resistance index of the proximal hepatic artery increased significantly (P < .01) immediately after embolization, then returned to baseline values 2 days after TAE. Arterial signal in the distal hepatic artery, generally absent immediately after TAE, could be recorded 2 days after.
Conclusion:
There is a rapidly reversible decrease in hepatic arterial flow induced by embolization, without any change in portal venous flow.