Fig. 2
From: Head and neck CT angiography to assess the internal carotid artery stealing pathway
Patient 1, female. (Fig. 2a-d) Vascular ultrasound shows: a The left CCA had no blood flow, b the left ECA had retrograde blood flow, c the left ICA blood flow, the blood flow spectrum changes with low flow rate and low fluctuation, d the left ECA supplies blood to the left ICA. (Fig. 2e-h) CTA shows: e Curved Planar Reformation (CPR) shows: The left CCA occlusion, left ICA patency, f Volume Rendering (VR) shows: internal carotid artery stealing pathway, g Multi-planner reformation (MPR) shows: the left ICA steals blood access from left ECA, h Maximal intensity projection (MIP) shows: Deep cervical artery, ascending cervical artery- occipital artery forms the anastomotic vessels