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Sirtex
Sirtex Medical Limited is an Australian-based medical device company, providing a radioactive treatment for inoperable liver cancer called SIR-Spheres microspheres. The company is currently headed by Gilman Wong, who was awarded CEO of the Year 2012 from CEO Magazine. It was established in 1991.
== How the SIR-Spheres microspheres work ==
When SIR-Spheres microspheres are used to treat liver cancer, the treatment is called Selective Internal Radiation Therapy (called SIRT). This is a relatively new treatment option for people suffering inoperable liver cancer. SIR-Spheres are very small radioactive beads about one third the size of a human hair width that are injected into tumors within the liver.
== How they are used ==
The radioactive microspheres have a half-life of about 64 hours. They are administered by a trained interventional radiologist who specialises in minimally invasive, targeted treatments. The procedure is usually performed under local sedation. A small incision is made in the patient's groin and a flexible catheter is guided into the liver through the femoral artery in the leg up to the tumor sites. The catheter is moved through the hepatic artery and positioned by the interventional radiologist to allow for targeted infusion of the SIR-Spheres microspheres to the site of the tumors. The microspheres take approximately 15 minutes to be infused, the whole procedure taking about one hour. Most patients are discharged within 24 hours.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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