Brachytherapy by Yasuo Yoshioka & Jun Itami & Masahiko Oguchi & Takashi Nakano

Author:Yasuo Yoshioka & Jun Itami & Masahiko Oguchi & Takashi Nakano
Language: eng
Format: epub
ISBN: 9789811304903
Publisher: Springer Singapore

11.4 Recent Situation of Permanent Seed Implantation Brachytherapy in Japan

The prostate cancer population is rapidly multiplying in Japan; it became the third cancer of Japanese men in 2017, and about 86,100 patients are newly diagnosed every year [6]. According to the increase of prostate-specific antigen (PSA) screening, those with localized stage are growing, and a number of the patients who are receiving curative treatments, such as surgery or radiation therapy, are increasing.

Various kinds of radiation therapies are performed for the treatment of prostate cancer such as external beam radiotherapy (EBRT) including three-dimensional conformal radiation therapy (3D-CRT), and IMRT, PB, HDR brachytherapy or particle therapy such as proton or carbon-ion therapy. People who receive radiation therapies as initial treatments for cancer are increasing in Japan; however, still more people choose surgery than radiation therapy. According to the data of JASTRO, 12.3% of whole radiation therapy are for prostate cancer, and about three-quarters of prostate radiation therapy are performed by EBRT in Japan [7] (Fig. 11.2).

Fig. 11.2Treatment modalities of radiation therapy for prostate cancer in Japan. Estimated from 2012 annual report of JASTRO [7] (https://​www.​jastro.​or.​jp/​aboutus/​child.​php?​eid=​00048). Particle (proton and carbon ion). 3D-CRT three-dimensional conformal radiation therapy, IMRT intensity-modulated radiation therapy, LDR low dose rate, PB permanent brachytherapy, HDR high-dose-rate; Ir-192 brachytherapy

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