Figure 1From: A 3D numerical study of the collateral capacity of the circle of Willis with anatomical variation in the posterior circulation3D models of the CoW. (a) Patient-specific model. (b) Ideal model. The abbreviation of each artery branch is marked nearby. The last letter "L" and "R" in the abbreviations represent the left and right side of the arteries, respectively. The black dashed box shows the center of the CoW.Back to article page