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Your search keyword '"Nishio, Masamichi"' showing total 3 results
Start Over Author "Nishio, Masamichi" Journal journal of radiation research
3 results on '"Nishio, Masamichi"'

1. Japanese Structure Survey of Radiation Oncology in 2011.

Author

Numasaki, Hodaka, Teshima, Teruki, Nishimura, Tetsuo, Akuta, Keizo, Ando, Yutaka, Ikeda, Hiroshi, Kamikonya, Norihiko, Koizumi, Masahiko, Sasaki, Tomonari, Sekiguchi, Kenji, Tago, Masao, Terahara, Atsuro, Nakamura, Katsumasa, Nishio, Masamichi, Murakami, Masao, Mori, Yoshimasa, Ogawa, Kazuhiko, and Committee, Japanese Society for Radiation Oncology Database

Subjects
RADIOTHERAPY, ONCOLOGISTS
Abstract

We evaluated the evolving structure of radiation oncology in Japan in terms of equipment, personnel, patient load and geographic distribution to identify and overcome any existing limitations. From March 2012 to August 2015, the Japanese Society for Radiation Oncology conducted a questionnaire based on the Japanese national structure survey of radiation oncology in 2011. Data were analyzed based on the institutional stratification by the annual number of new patients treated with radiotherapy per institution. The estimated annual numbers of new and total (new plus repeat) patients treated with radiation were 211 000 and 250 000, respectively. Additionally, the estimated cancer incidence was 851 537 cases with approximately 24.8% of all newly diagnosed patients being treated with radiation. The types and numbers of treatment devices actually used included linear accelerator (LINAC; n  = 836), telecobalt (n  = 3), Gamma Knife (n  = 46), 60Co remote afterloading system (RALS; n  = 24), and 192Ir RALS (n  = 125). The LINAC system used dual-energy functions in 619 units, 3D conformal radiotherapy functions in 719 and intensity-modulated radiotherapy (IMRT) functions in 412. There were 756 JRS or JASTRO-certified radiation oncologists, 1018.5 full-time equivalent (FTE) radiation oncologists, 2026.7 FTE radiotherapy technologists, 149.1 FTE medical physicists, 141.5 FTE radiotherapy quality managers and 716.3 FTE nurses. The frequency of IMRT use significantly increased during this time. To conclude, although there was a shortage of personnel in 2011, the Japanese structure of radiation oncology has clearly improved in terms of equipment and utility. [ABSTRACT FROM AUTHOR]

Published
2019
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2. Japanese structure survey of radiation oncology i n 2009 based on institutional atratification of the Patterns of Care Study

Author

Teshima, Teruki, Numasaki, Hodaka, Nishio, Masamichi, Ikeda, Hiroshi, Sekiguchi, Kenji, Kamikonya, Norihiko, Koizumi, Masahiko, Tago, Masao, Ando, Yutaka, and et.al

Abstract

The ongoing structure of radiation oncology in Japan in terms of equipment, personnel, patient load and geographic distribution was evaluated in order to radiation identify and improve any deficiencies. A questionnaire-based national structure survey was conducted from March 2010 to January 2011 by the Japanese Society for Therapeutic Radiology and Oncology (JASTRO). These data were analyzed in terms of the institutional stratification of the Patterns of Care Study (PCS). The total numbers of new cancer patients and total of cancer patients (new and repeat) treated with radiation in 2009 were estimated at 201,000 and 240,000, respectively. The type and numbers of systems in actual use consisted of Linac (816), telecobalt (9), Gamma Knife (46), (60)Co remote afterloading system (RALS) (29) and (192)Ir RALS systems (130). The Linac systems used dual energy function for 586 (71.8%), 3DCRT for 663 (81.3%) and IMRT for 337 units (41.3%). There were 529 JASTRO-certified radiation oncologists (ROs), 939.4 full-time equivalent (FTE) ROs, 113.1 FTE medical physicists and 1836 FTE radiation therapists. The frequency of interstitial radiation therapy use for prostate and of intensity-modulated radiotherapy increased significantly. PCS stratification can clearly identify the maturity of structures based on their academic nature and caseload. Geographically, the more JASTRO-certified physicians there were in a given area, the more radiation therapy tended to be used for cancer patients. In conclusion, the Japanese structure has clearly improved during the past 19 years in terms of equipment and its use, although a shortage of manpower and variations in maturity disclosed by PCS stratification remained problematic in 2009.

Published
2012

3. Japanese structure survey of radiation oncology in 2009 based on institutional stratification of the Patterns of Care Study

Author

Teshima, Teruki, Numasaki, Hodaka, Nishio, Masamichi, Ikeda, Hiroshi, Sekiguchi, Kenji, Kamikonya, Norihiko, Koizumi, Masahiko, Tago, Masao, Ando, Yutaka, Tsukamoto, Nobuhito, Terahara, Atsuro, Nakamura, Katsumasa, Murakami, Masao, Takahashi, Mitsuhiro, Nishimura, Tetsuo, Radiology, Japanese Society for Therapeutic, and Committee, Oncology Database

Abstract

The ongoing structure of radiation oncology in Japan in terms of equipment, personnel, patient load and geographic distribution was evaluated in order to radiation identify and improve any deficiencies. A questionnaire-based national structure survey was conducted from March 2010 to January 2011 by the Japanese Society for Therapeutic Radiology and Oncology (JASTRO). These data were analyzed in terms of the institutional stratification of the Patterns of Care Study (PCS). The total numbers of new cancer patients and total of cancer patients (new and repeat) treated with radiation in 2009 were estimated at 201,000 and 240,000, respectively. The type and numbers of systems in actual use consisted of Linac (816), telecobalt (9), Gamma Knife (46), 60Co remote afterloading system (RALS) (29) and 192Ir RALS systems (130). The Linac systems used dual energy function for 586 (71.8%), 3DCRT for 663 (81.3%) and IMRT for 337 units (41.3%). There were 529 JASTRO-certified radiation oncologists (ROs), 939.4 full-time equivalent (FTE) ROs, 113.1 FTE medical physicists and 1836 FTE radiation therapists. The frequency of interstitial radiation therapy use for prostate and of intensity-modulated radiotherapy increased significantly. PCS stratification can clearly identify the maturity of structures based on their academic nature and caseload. Geographically, the more JASTRO-certified physicians there were in a given area, the more radiation therapy tended to be used for cancer patients. In conclusion, the Japanese structure has clearly improved during the past 19 years in terms of equipment and its use, although a shortage of manpower and variations in maturity disclosed by PCS stratification remained problematic in 2009.

Published
2012
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