Multimodality imaging considerations for genicular artery embolization in knee osteoarthritis

Figure 6 Digital subtraction angiography before and after genicular artery embolization. A: Pre-treatment digital subtraction angiography demonstrating focal synovial hyperemia characterized by a dense periarticular vascular blush in the region corresponding to the patient’s symptomatic compartment; B: Post-treatment angiography following embolization showing marked reduction of pathologic hypervascular blush with preservation of parent arterial flow. Resolution of synovial hyperemia represents the intended intraprocedural endpoint of genicular artery embolization.