Radiotherapy Equipment
  • Body gamma knife

    The gamma knife can be used for the stereotactic radiotherapy of cancer and other abnormal hyperplasia. Gamma knife technology uses multiple cobalt-60 (an isotope) radioactive sources, with the generated gamma rays forming highly-focused radiation light beams via a collimator. After the light beams gather together, the device uses information from imaging systems such as PET-CT scanners or MRI to conduct therapy with highly concentrated doses on the positions that need irradiation. The gamma knife generates high-dose radiation at the accurately-positioned target location to simultaneously destroy cancer cells and reduce the damage to surrounding healthy tissue as much as possible. The therapy process is minimally or non-invasive, so it can be used as the main or supplementary treatment. The therapy process does not require anesthesia, so it provides an alternative therapeutic method for patients for whom invasive surgery is not suitable. In addition, gamma knife therapy can shorten the length of hospital stay for patients, its cost is low compared with invasive surgery, and it can avoid the potential risks and complications caused by many other therapies. The body gamma knife system is used for the treatment of tumors located in the body, with a complete course of treatment consisting of multiple sessions over several weeks. This technology has been approved by the China Food and Drug Administration (CFDA), and is independently developed and broadly used in China.

  • Cowealth Intrabeam

    IORT (Intraoperative Radiation Therapy) combines radiotherapy with surgical treatment, with a biologically effective radiation dose several times that of conventional radiotherapy. It has a significant use in enhancing the effect and timeliness of therapy and preventing the spread of cancer. At present, more than one hundred hospitals in the world regularly use IORT technology. IORT shows huge potential, but due to past design and manufacturing problems, etc., its clinical use is very limited. Under normal conditions, if a patient needs IORT, first surgery is conducted, then the patient is carried through the hospital under anesthesia to the accelerator to receive IORT therapy. Finally, the patient is carried back to the operating room to finish surgery. This method increases the likelihood of infection and carries significant risk. An alternative method is to install an improved conventional accelerator in the operating room or in an adjacent operating room. However, the conventional accelerator is very heavy and requires special construction. It needs effective preventive facilities, and it occupies a lot of precious hospital space. The long transportation process and high price of installation discourage many hospitals from using IORT.

  • Head gamma knife

    The gamma knife can be used for the stereotactic radiotherapy of cancer and other abnormal hyperplasia. Gamma knife technology uses multiple cobalt-60 (an isotope of Cobalt) radioactive sources, with the generated gamma rays forming highly focused radiation light beams via a collimator. After the light beams gather together, the device uses information from imaging systems such as PET-CT scanners or MRI to conduct therapy with highly concentrated dosage on the positions that need irradiation. The gamma knife generates high-dose radiation at the accurately-positioned target location to simultaneously destroy cancer cells and reduce the damage on the surrounding healthy tissue as much as possible. The therapy process is minimally or non-invasive, so it can be used as the main or supplementary treatment. The therapy process does not require anesthesia, so it provides an alternative therapeutic method for patients for whom the invasive surgery is not suitable. In addition, gamma knife therapy can shorten the length of hospital stay for patients, its cost is low compared with invasive surgery, and it can avoid the potential risks and complications caused by many other therapies. The head gamma knife is mainly used to treat brain cancer. Usually, the entire therapy process requires 10 to 30 minutes. The head gamma knife can also be used to treat other symptoms, such as brain injury, prosopalgia (facial pain) and certain types of arteriovenous malformations (abnormities between the veins and the arteries).

  • Linear accelerator

    Linear accelerators use microwave technology to generate high-energy X-rays to directly irradiate cancer cells. Linear accelerators can be used to treat brain cancer or cancers of other parts of the body. Normally, a course of treatment consists of 20 to 40 therapy sessions, with each session lasting about 10 to 20 minutes. Compared with gamma knife technology, linear accelerators can treat cancers of larger volumes. Linear accelerators can also be jointly used with special computer software and advanced imaging diagnostic equipment, thus providing more effective and advanced treatment. For example, three-dimensional conformal radiotherapy uses imaging equipment to provide detailed 3D images of tumors and the surrounding organs, enabling the generated irradiating beams to be distributed according to the shape of the tumor, thus reducing damage to healthy tissue.

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