Fig. 7.

A 62-year-old male patient with internal carotid artery dissection. Colour Doppler imaging a showing flow reversal in common carotid artery and no blood flow signals within the internal carotid artery raising suspicion of total occlusion. CEUS image b revealed the presence of blood flow distally to the point of suspected occlusion by colour Doppler (a) and identifying a free-floating anechoic and non-enhancing membrane within the lumen, which could potentially represent an intimal flap (arrowhead). MDCTA c confirmed the presence of an intimal flap in combination with an elongated intramural haematoma