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American researchers announced that frozen tumor may help to ease has spread to bone marrow cancer arising from pain, usually of local anesthetics and radiation therapy for such pain are powerless.

According to Reuters, frozen ablation is used to damage the kidney and prostate and other parts of the tumor, but the United States, Minnesota City, Mayo Clinic Rochester researchers found that 80 percent of its easing the pain of cancer patients, the effect can be sustained six months.

Radiologist Matthew researcher the United States in Chicago, the annual meeting of Radiological Society of North America introduced their research results. He said the treatment of 34 patients or traditional methods of pain relief regardless of their use, or is unwilling to accept their own traditional therapies.

These patients the cancer sites varied, including the colon, rectum, kidney, ovarian, thyroid and melanoma, but has spread to the bone marrow.

Doctors to use CT imaging scanner, the tiny needle-like probe into the tumor, and then through a small pipeline to inject argon detectors in a large inflatable room, so that the temperature dropped enough to frozen tumor.

In this study, patients with pain has just begun the average value of 7.2 (maximum value is 10), this level is considered more serious. Eight weeks later, the pain of their value fell by half, about 3.6. In the 24 weeks follow-up survey of patients, pain decreased to the average value of 1.7.