Multimodality imaging considerations for genicular artery embolization in knee osteoarthritis

Figure 2 Mechanistic overview of genicular artery embolization in knee osteoarthritis. Schematic illustration demonstrating selective catheterization of a genicular artery supplying inflamed synovium in knee osteoarthritis. Embolic particles are delivered through a microcatheter to occlude abnormal hypervascular synovial neovessels while preserving flow in adjacent parent arteries. The inset magnified view illustrates embolic particles within the arterial lumen alongside circulating blood cells, representing targeted pruning of pathologic microvascular networks implicated in inflammation-driven pain.