What is Radiation Therapy?

The so-called selective internal radiation therapy is to implant microbeads containing the yttrium-90 radioactive element into the liver and use radiation to kill cancer cells.

Internal radiotherapy

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The so-called selective internal radiation therapy is to implant microbeads containing the yttrium-90 radioactive element into the liver and use radiation to kill cancer cells.

During in vivo radiotherapy, the doctor inserts a catheter into the arteries of the groin, leading the catheter to the hepatic artery, and then injects the prepared, radioactive yttrium 90 microbeads into the catheter, allowing these radioactive substances to be implanted into the liver tumor along with blood flow. To kill cancer cells.

Patients with liver cancer must undergo a radiological test before receiving in vivo radiation therapy to ensure that radioactive material does not flow into the lungs, gallbladder, stomach, or other organs along with blood vessels.

Patients need to wait 5 days before they know the test results.

In addition, those patients who have undergone transarterial chemoembolization chemotherapy cannot be treated with selective in vivo radiation therapy. This is because therapies that cut off the blood supply to cancer cells and directly attack the cancer cells with chemotherapy drugs have cut off blood vessels in the liver, making it impossible for radioactive substances to be implanted into the liver through the blood vessels.