Modern development of high-dose-rate brachytherapy.

Abstract:

:Brachytherapy is an invasive therapy with placement of radiation source into or near the tumor. The difference between planning target volume and clinical target volume is minimal, and the dose out of the tumor reduces rapidly due to the inverse-square law. High-dose-rate brachytherapy enables three-dimensional image guidance, and currently, tumor dose as well as doses of the surrounding normal structures can be evaluated accurately. High-dose-rate brachytherapy is the utmost precision radiation therapy even surpassing carbon ion therapy. Biological disadvantages of high-dose rate have been overcome by the fractional irradiation. High-dose-rate brachytherapy is indispensable in the definitive radiation therapy of cervical cancer. Also in prostate cancer and breast cancer, high-dose-rate brachytherapy plays a significant role. Brachytherapy requires techniques and skills of radiation oncologists at the time of invasive placement of the radiation source into the tumor area. Education of young radiation oncologists is most urgent and important.

journal_name

Jpn J Clin Oncol

authors

Itami J

doi

10.1093/jjco/hyaa029

subject

Has Abstract

pub_date

2020-05-05 00:00:00

pages

490-501

issue

5

eissn

0368-2811

issn

1465-3621

pii

5781842

journal_volume

50

pub_type

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