Learn about how Cesium-131 by Isoray is being used in radiation treatment.

Doctors around the country use Cesium-131 by Isoray to treat a wide range of cancers.


Over 10,000 patients treated.


A novel approach for radiation delivery.


An innovative solution for recurrent cancers.

Head & Neck

Delivering personalized radiation to tightly controlled areas.


Customized individual cancer treatment.

Breakthroughs in brachytherapy by Cesium Pioneers.

Doctors across the US are using Cesium-131 by Isoray in powerful ways with great outcomes.
Check out their work.