[Revolution CT hepatic perfusion imaging assessment of peripheral infiltration zone of hepatic alveolar echinococcosis].

Objective: To analyze the blood supply and metabolism in the marginal area of foci of hepatic alveolar echinococcosis by quantitative perfusion parameters.
Methods: Thirty patients with hepatic alveolar echinococcosis were scanned with the Revolution CT and the images were analyzed. The perfusion parameters, such as the bloodflow (BF), time to peak (TTP), blood volume (BV), mean transit time (MTT) and hepatic arterial fraction (HAF) were compared among different groups.
Results: The BF, TTP, BV and MTT values of the peripheral infiltration zone and the values of the surrounding normal liver tissues were significantly different ( F = 24.579, 8.343, 20.535 and 21.843, all P <0.05), but the HAF values of the peripheral infiltration zone and the values of the surrounding normal liver tissues were not significantly different in the hepatic alveolar echinococcosis patients ( F = 2.621, P > 0.05) .
Conclusions: The whole hepatic perfusion Revolution CT can accurately and quantitatively analyze the alveolar echinococcosis foci, especially the peripheral infiltration zone, which has important guiding significance for the formulation of surgical plan.