Ra-needle equivalent dose destribution made by slit beam rotation therapy using X-ray of medical linear accelerator

医用直线加速器X射线狭缝束旋转治疗的雷针当量剂量分布

• 批准号: 60870036
• 负责人: IRIE Goro
• 金额: $ 7.68万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-60870036/
• 关键词: X-ray Slit beam; rotation irradiation; 小線源線量分布

The result of this research proved that Ra-needle equivqlent dose distribution. Can be obtained by rotating irradiation of slited thin high energy X-ray of 10MV. Controlling the relation between rotation angleof irradiation head and guntry of the machine, dose distribution corresponding any direction of Ra-needle is prove to be available. The controlling unit for the above move-ment was developed in this research project.This irradiation showed better respons for a group of malignant glioma cases than usual flat irradiation. One of the short comming of this irradiation method is its time consumption by cutting down the X-ray beam by so narrow slit as narrower than size of X-ray focus. Discussion with technical staff of Toshiba Co. LTD. concluded it is technically possible to over-come the short comming by designing a new accelerator.

本研究结果证明了Ra针的等效剂量分布。通过旋转照射可得到10MV的狭缝薄型高能X射线。控制照射头旋转角度与机器枪架的关系，可实现Ra针任意方向的剂量分布。本研究项目开发了上述运动的控制单元。与通常的平面照射相比，这种照射对一组恶性神经胶质瘤病例显示出更好的反应。这种照射方法的缺点之一是通过比X射线焦点尺寸更窄的狭缝来切割X射线束，从而耗费时间。与东芝株式会社技术人员讨论得出的结论是，在技术上可以通过设计新的加速器来克服这一缺陷。

项目成果

Tadashi, KAMADA.: "Clinical application of slit beam rotation therapy (SBRT)" Proceedings of the 9th international conference on the use of computers in radiation therapy. (1987)

Tadashi, KAMADA.：“狭缝束旋转疗法 (SBRT) 的临床应用”第九届计算机在放射治疗中的使用国际会议论文集。

放射線治療システム研究. 2-1. (1985)

放射治疗系统研究。（1985）

Tadashi,Kamada: Proceedings of the 9th international conference on the use of computers in radiation therapy. (1987)

Tadashi，Kamada：第九届计算机在放射治疗中的使用国际会议论文集。