What is the IMRT?

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  • 強度変調放射線治療とは？
  • キョウド ヘンチョウ ホウシャセン チリョウ トワ?

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Abstract

Intensity-modulated radiation therapy(IMRT) is the treatment method which enables us to deliver a high dose to the tumor and to deliver a lower dose to surrounding normal structures. Since 2000, IMRT has been started it's clinical use in Japan mainly for the tumors of central nervous system(CNS), head and neck tumors(HNSCC) and prostae cancer. And national health insurance provided this fee for all localized malignant tumors from Apr. 2010. Hypofractionated high-dose irradiation by IMRT for GBM showed excelent local control in compared with conventional technique. The efficay of IMRT in sparing parotid glands, therby diminishing the severity of radiation-induced permanent xerostomia in selected patients, has been amply demonstrated during the past decade. And IMRT improved tha functional and QOL outcomes for patients with HNSCC. IMRT also reduced late rectal complication of prostate cancer patients. So, the number of IMRT treatment will be increased near future.

Journal

  • RADIOISOTOPES

    RADIOISOTOPES 61 (1), 45-55, 2012

    Japan Radioisotope Association

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