Table 1 Characteristics of products based on radioactive microspheres available in Europe for the treatment of liver tumors as of the first quarter of 2023
TheraSpheres® | SIR-Spheres® | QuiremSpheres® | |
|---|---|---|---|
Microsphere diameter | 15–35 µm | 20–60 µm | 15–60 µm |
Material | Glass | Resin | Poly(glycolic acid-co-dl-lactic acid) |
Isotope | Yttrium-90 | Yttrium-90 | Holmium-166 |
Activity per microsphere | 70–2500 Bq | 50–150 Bq | 450 Bq |
Approved area | Asia, Australia, Canada, Europe, USA | Europe |