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. 2021 Aug 27;17(6):516–524. doi: 10.4244/EIJ-D-20-01275

Figure 1.

Figure 1

Angiographic classification of SCAD. Arrows indicate the dissected segments. A) Angiotype 1, radiolucent flap or dual lumen. B1) Angiotype 2A, long (>20 mm) narrowing with distal calibre recovery. B2) Vessel restoration three months after conservative management of B1. C) Angiotype 2B, long (>20 mm) narrowing involving the main distal vessel. D) Angiotype 3, focal (<20 mm), sometimes tubular stenosis. E1) Angiotype 4, total occlusion of the main vessel. E2) Flow restoration after stenting.