Multimodality imaging considerations for genicular artery embolization in knee osteoarthritis

Table 5 Post-genicular artery embolization imaging interpretation guide for knee osteoarthritis showing expected response patterns

Category	Imaging findings and interpretation
Expected response patterns	Reduced synovial enhancement on contrast-enhanced MRI. Reduced synovial thickness/volume. Lower effusion-synovitis grade when scored. Interval normalization of early marrow signal changes when present

This table highlights expected post-procedural imaging response patterns, meaning findings that generally reflect treatment-related improvement in inflammation-predominant disease on follow-up imaging. These include reduced synovial enhancement on contrast-enhanced magnetic resonance imaging, decreased synovial thickness or volume, lower effusion-synovitis grade when scored, and interval normalization of early marrow signal changes when present. MRI: Magnetic resonance imaging.