Figure 5
From: Asymmetrical middle cerebral artery bifurcations are more vulnerable to aneurysm formation
Multiple regression analysis shows the correlation of middle cerebral artery (MCA) aneurysm size with the vessel diameter, aneurysm neck, LA and DA ratio in patients with MCA bifurcation aneurysms. Aneurysm size is represented by aneurysm maximum height × width. D1, the diameter of M1; D2, the diameter of the smaller M2; D3, diameter of the larger M2; LA ratio, larger lateral angle (φ3)/smaller lateral angle (φ2); DA ratio, D3/D2. Differences were considered statistically significant at P < 0.05.
