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Figure 2. Contrast-enhanced phase inversion ultrasound of a patient with hepatocellular adenoma (arrows). (a) Contrast-enhanced phase inversion ultrasound scanning revealed only arterial phase enhancement for 10 s (10–20 s) after administration of SonoVue®. (b) At the end of the arterial phase (22 s after administration of SonoVue®) a slightly hypoechoic liver tumour was detected by contrast-enhanced phase inversion ultrasound and no portal venous sinusoidal enhancement was observed.
