What am I looking at?
Visual recognition
Shielded vial handled with radiation precautions; delivered through a microcatheter via a dedicated administration set.
07-13
Yttrium-90 radioembolization microspheres
Radioembolic microspheres
Three-panel learning framework
Recognition, context, and distinction
What does it do, and where will I see it?
Use & procedural context
Micron-sized glass or resin spheres loaded with the beta-emitter yttrium-90. Typical procedural contexts include hepatocellular carcinoma and hepatic metastases; radiation lobectomy or segmentectomy.
What most clearly distinguishes it from similar devices?
Key distinctions
Yttrium-90 microspheres are the therapeutic radioembolization payload, unlike technetium-99m MAA, which is used beforehand to simulate distribution and assess shunting.