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Contrast-enhanced high mechanical endoscopic ultrasound in a patient with pancreatic cancer (a) pancreatic cancer after influx of contrast enhancer (4.5 mL SonoVue); only a few vessels are visible, the lesion is visible within the colour Doppler window as the black area with the colour Doppler signals only on the edges; (b) pw-Doppler analysis reveals only arterial vessels; the atrial vessel signal appears in the right half of the picture in a pulsatile manner.
