What is the difference between musculoskeletal radiology and interventonal radiology?

MSK & Interventional: MSK focuses more on diagnostic imaging of the bones, muscles, & joints. Interventional radiology (IR) is largely procedural and may span the gamut of vascular angiography, angioplasty, stent, or embolization; biopsies and drainages. MSK may have it's own procedure responsibilities including biopsies or joint aspiration but in many places these responsibilities are shared or done exclusively by IR

MSK vs. IR Radiology: Musculoskeletal and Interventional Radiology are 2 different fellowship training disciplines in Radiology. Once a Radiology resident completes 4 years of radiology residency training, he or she may then complete additional fellowship training in a variety of fields, including MSK (bones and joints) and IR (interventional procedures such as angiograms and stents).