Conformation Radiotherapy and Conformal Radiotherapy.

  • MORITA Kozo
    Department of Radiotherapy, Aichi Cancer Center Hospital

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Other Title
  • 原体照射法(conformation radiotherapy)とConformal radiotherapy(CRT)

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Description

In order to coincide the high dose region to the target volume, the ‘Conformation Radiotherapy Technique’ using the multileaf collimator and the device for ‘hollow-out technique’ was developed by Prof. S. Takahashi in 1960. This technique can be classified a type of 2D-dynamic conformal RT techniques. By the clinical application of this technique, the late complications of the lens, the intestine and the urinary bladder after radiotherapy for the maxillary cancer and the cervical cancer decreased. Since 1980's the exact position and shape of the tumor and the surrounding normal tissues can be easily obtained by the tremendous development of the CT/MRI imaging technique. As a result, various kinds of new conformal techniques such as the 3D-CRT, the dose intensity modulation, the tomotherapy have been developed since the beginning of 1990'. Several ‘dose escalation study with 2D-/3D conformal RT’ is now under way to improve the treatment results.

Journal

  • The Journal of JASTRO

    The Journal of JASTRO 10 (4), 281-291, 1999

    Japanese Society for Therapeutic Radiology and Oncology

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