What type of radiation does Y-90 emit?

What type of radiation does Y-90 emit?

Yittrium-90 is a pure beta-emitter, with a decay energy of 0.94 MeV and the average penetration depth in human tissue is 2.4 mm. In the form of microspheres, it is suitable for selective arterial injection. The physical half-life of Y-90 is 64.2 h.

What is Y-90 radiation treatment?

Radioembolization is a minimally invasive procedure that combines embolization and radiation therapy to treat liver cancer. Tiny glass or resin beads filled with the radioactive isotope yttrium Y-90 are placed inside the blood vessels that feed a tumor.

Why is yttrium 90 used in radiotherapy?

In Y-90 radiotherapy, millions of tiny radioactive beads are injected directly into the arteries that supply blood to your tumor. These beads will stay in the blood vessels around your tumor(s). This allows very strong radiation to reach the tumors directly.

Are you radioactive after Y-90 treatment?

The Y90 has a half-life of 64.2 hours. This means that it will be non-radioactive in about a month’s time.

How many times can you get Y90?

Patients are typically limited to two treatments, although doctors can take another approach — only with concentrated chemotherapy and larger particles — once radiation limits are reached. “He could potentially have that multiple times to prolong his survival and keep him doing well,” Dr. McBride says.

Is the Y90 palliative?

Y-90 radioembolisation is a palliative treatment for primary liver lesions and liver metastatic disease which uses ionising radiation to shrink tumours. It is generally used to relieve the symptoms of liver tumours rather than to cure the underlying condition.

How long does a Y90 mapping procedure take?

The mapping procedure will take about 2-4 hours. Dr. Christenson will place a small plastic tube (called a catheter) into one of the vessels in your groin and direct the catheter to the blood vessels in your liver.

How long do chemo beads last?

The beads will continue to release radiation over the course of two weeks following treatment, gradually decreasing to insignificant levels and with few side effects.

How long does it take Y90 to work?

Patients generally resume normal activities within one or two weeks. Y90 treatment can be used in combination with traditional treatments for cancer, including surgery, chemotherapy, and immunotherapy.

Can radiation shrink liver tumors?

Radiation therapy can shrink or kill tumor cells. At Memorial Sloan Kettering, we may recommend this approach if you have a primary liver tumor that can’t be removed with surgery. It can be used alone or in combination with chemotherapy or other treatments.

How many times can you do Y90?

How long does a y90 procedure take?

If there are multiple tumors, the procedure may need to be repeated in another blood vessel. The procedure takes about one hour to complete.

Can y90 cure liver cancer?

Radioembolization (Y90) Radioembolization is a minimally invasive procedure that combines embolization and radiation therapy to treat liver cancer. Tiny glass or resin beads filled with the radioactive isotope yttrium Y-90 are placed inside the blood vessels that feed a tumor.

What is a Y 90 procedure?

(General Explanation) Radioembolization (Y90) procedure is mostly used to treat liver cancers. It uses two procedures called embolization and radiation therapy Radiation therapy consists of using ionizing radiation to kill or shrink the tumors Embolization is used to block blood flow in which blood vessels or vascular malformations are blocked-off

What is a y90 procedure?

Yttrium-90 or Radioembolization (Y-90) is a non-surgical procedure that is used to treat liver cancer. It delivers targeted internal radiation therapy to the tumor.

What is yttrium-90 radiotherapy?

What is Yttrium-90 (Y-90) Radiotherapy? Y-90 Radiotherapy is a special procedure that is done to treat tumors in your liver. In this type of treatment, tiny radioactive beads are injected into the vessels that supply your liver tumor with blood.