Martijn Jimmink Business Manager Isotopes. Primary liver cancer and liver metastases can be treated using a medical device called microspheres. These small radioactive particles are injected into the liver artery with the help of a catheter.
In the liver, the spheres will reach the tumor where they are permanently implanted. For the next days, they will emit beta particles that will kill the tumor. The treatment can be applied before liver surgery or a transplantation. Its aim is to reduce the size of the tumor to make it easier to remove the tumor during surgery.
It is the leading supplier of Y microspheres worldwide. When a patient is diagnosed with synovitis, the synovial membrane is inflamed. This is a thin layer on the inside of a joint. It limits the mobility of the joint and can be painful. An intra articular infection with radioactive particles, for example Y, can reduce inflammation.
Healthy tissue will not be damaged with this form of therapy. Each sphere is about the size of four red blood cells in width and looks like a speck of dust. The microspheres are injected through a catheter introduced from the groin and threaded into the liver artery supplying the tumor. The microspheres become lodged in the tumor blood vessels, where they emit their local radiation that causes tumor cells to die.
This technique allows for a high local dose of radiation to be delivered, without subjecting healthy tissue in the body to the radiation. The Yttrium irradiates from within and can be viewed as "internal" radiation or "brachytherapy. Radioembolization is a palliative, not a curative, treatment. Patients may benefit by extending their lives and improving their quality of life.
Some patients who initially have too much tumor to undergo surgery or transplantation may respond well enough to undergo surgery later. Radioembolization is performed as an outpatient treatment, without the need to stay overnight in the hospital. The Stanford Medicine Online Second Opinion program offers you easy access to our world-class doctors. Visit our online second opinion page to learn more.
Radioembolization Radioembolization is a treatment which uses radioactive microspheres to treat primary and metastatic liver tumors. Share on Facebook. Notice: Users may be experiencing issues with displaying some pages on stanfordhealthcare.
We are working closely with our technical teams to resolve the issue as quickly as possible. Thank you for your patience. View the changes to our visitor policy » View information for Guest Services ». New to MyHealth? Radioembolization also known as selective internal radiation therapy SIRT , is a form of radiation therapy used to selected patients who are not candidates for surgery due to the location of their tumors or their performance health status.
Radioembolization is currently used to treat primary liver cancer HCC and metastatic colorectal cancer liver metastases. The treatment involves injecting tiny microspheres with low levels of radioactive material into the arteries that supply the tumor. The radioactivity destroys the liver tumor without affecting other parts of the body, thus minimizing exposure to healthy tissue. In the procedure, a radiologist inserts a catheter which deposits radioactive particles to the area of the tumor.
The microspheres themselves are made of glass or resin.
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