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TheraSphere® for liver cancer

What is TheraSphere®?

When cancer spreads, the liver is a common site for metastatic disease. TheraSphere® is an innovative therapy that delivers radiation directly to tumors in the liver.

How it works

TheraSphere uses tiny glass beads, called microspheres, to deliver radiation directly to cancerous tumors in the liver. Measuring one-third the diameter of a human hair, these tiny microspheres are embedded with a radioactive element to help kill liver cancer cells.

TheraSphere radiation therapy is delivered to a tumor through a catheter that the physician guides into the hepatic artery, the liver’s main blood vessel. Once in place, the microspheres are inserted into the catheter where they can enter the smaller blood vessels supplying the tumor and block the flow of blood. Then, the microspheres emit radiation to destroy cancer cells in the tumor, while sparing healthy liver tissue.

In some cases, SIR-Spheres®, a similar treatment which uses resin microspheres, may be used instead.

TheraSphere® medical animation

Video: TheraSphere® Medical Animation

TheraSphere®

TheraSphere for liver cancer

The advantages of TheraSphere for liver cancer treatment include:

  • It’s a convenient, outpatient treatment.
  • This internal radiation therapy technique uses the tumor’s blood supply to deliver the treatment precisely and directly into the tumor, while sparing nearby healthy tissue from damage.

Many liver cancer patients who have reached their maximum tolerance dose of traditional radiation may be candidates for TheraSphere. Our radiation oncologists and other physicians will work with you to determine if TheraSphere is a viable treatment option for you.

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