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2. Comprehensive registry of esophageal cancer in Japan, 2015

Author

Watanabe, Masayuki, Toh, Yasushi, Ishihara, Ryu, Kono, Koji, Matsubara, Hisahiro, Miyazaki, Tatsuya, Morita, Masaru, Murakami, Kentaro, Muro, Kei, Numasaki, Hodaka, Oyama, Tsuneo, Saeki, Hiroshi, Tanaka, Koji, Tsushima, Takahiro, Ueno, Masaki, Uno, Takashi, Yoshio, Toshiyuki, Usune, Shiyori, Takahashi, Arata, and Miyata, Hiroaki

Published
2023
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6. Comprehensive registry of esophageal cancer in Japan, 2014

Author

Watanabe, Masayuki, Toh, Yasushi, Ishihara, Ryu, Kono, Koji, Matsubara, Hisahiro, Murakami, Kentaro, Muro, Kei, Numasaki, Hodaka, Oyama, Tsuneo, Ozawa, Soji, Saeki, Hiroshi, Tanaka, Koji, Tsushima, Takahiro, Ueno, Masaki, Uno, Takashi, Yoshio, Toshiyuki, Usune, Shiyori, Takahashi, Arata, and Miyata, Hiroaki

Published
2022
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11. A JROD survey: nationwide overview of radiotherapy data from 2015 to 2021.

Author

Ohba, Hisateru, Nakada, Yoshihiro, Numasaki, Hodaka, Umehara, Kensuke, Ota, Junko, Okuda, Yasuo, Teshima, Teruki, Ogawa, Kazuhiko, Nakamura, Katsumasa, and Committee, Japanese Society for Radiation Oncology Database

Subjects
RADIOTHERAPY, RADIATION injuries, RADIOISOTOPE brachytherapy, DATABASES, BREAST, DEATH rate, MEDIASTINUM
Abstract

The purpose of this survey was to examine the status of radiotherapy in Japan based on the cases registered in the Japanese Radiation Oncology Database (JROD), from 2015 to 2021, and to provide basic data to help improve the usefulness of the JROD in the future. The study population consisted of patients who underwent radiotherapy between 2014 and 2020 and did not opt out of the study. The survey item data analyzed in this study were entered into the database at each radiotherapy institution by referring to medical records from the preceding year. Our results show that the number of registered radiotherapy institutions and cases increased by ~50% in 2019 compared to those in 2015 (to 113 institutions and 60 575 cases, respectively). Among the survey item categories, the registration rate was lowest for prognostic information (13.9% on average over the 7-year period). In terms of the Japanese Society for Radiation Oncology disease site, the breast; lung, trachea and mediastinum and urogenital sites accounted for >50% of the total cases. The average survival and mortality rates over the 7-year study period were 67.4 and 17.4%, respectively. The X-ray radiotherapy completion rate exceeded 90% for all years and across all disease categories. 192Ir-based brachytherapy and 223Ra-based radionuclide therapy accounted for an average of 61.9 and 44.6%, respectively, of all corresponding cases over the 7-year period. In conclusion, this survey enables us to infer the actual status of radiotherapy in Japan based on the analysis of relevant nationwide data. [ABSTRACT FROM AUTHOR]

Published
2023
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14. Is Thoracic Duct Resection Necessary for Esophageal Squamous Cell Carcinoma Patients Treated with Neoadjuvant Chemoradiotherapy? A Propensity-Matched Analysis Based on the Comprehensive Registry of Esophageal Cancer in Japan

Author

Oshikiri, Taro, primary, Numasaki, Hodaka, additional, Oguma, Junya, additional, Toh, Yasushi, additional, Watanabe, Masayuki, additional, Muto, Manabu, additional, Kakeji, Yoshihiro, additional, and Doki, Yuichiro, additional

Published
2022
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26. Prospective Multi-Institutional Study of Definitive Radiotherapy With High-Dose-Rate Intracavitary Brachytherapy in Patients With Nonbulky (

Author

Toita, Takafumi, Kato, Shingo, Niibe, Yuzuru, Ohno, Tatsuya, Kazumoto, Tomoko, Kodaira, Takeshi, Kataoka, Masaaki, Shikama, Naoto, Kenjo, Masahiro, Tokumaru, Sunao, Yamauchi, Chikako, Suzuki, Osamu, Sakurai, Hideyuki, Numasaki, Hodaka, Teshima, Teruki, Oguchi, Masahiko, Kagami, Yoshikazu, Nakano, Takashi, Hiraoka, Masahiro, and Mitsuhashi, Norio

Published
2012
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30. Japanese structure survey of radiation oncology in 2009 with special reference to designated cancer care hospitals

Author

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

Published
2013
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36. 放射線治療症例全国登録（JROD）における2015～2019年の登録状況について

Author

Ohba, Hisateru and Numasaki, Hodaka

Abstract

【目的】本研究では、放射線治療症例全国登録(JROD)において、2015～19年に登録された5年分の全国の放射線治療症例の登録状況を明らかにし、全国の放射線治療の実態把握のための基礎資料とすることを目的とする。 【方法】対象施設は、2015～19年に放射線治療を行っている全国の約840の医療機関とした。対象患者は、2014～18年に放射線治療を受け、オプトアウトのない者とした。各医療機関は登録専用のウェブサイトから登録前年の診療情報をもとに登録した。本研究では、①登録施設数と地域別・男女別割合、②調査項目別登録率、③疾患別割合、④生死の状況、⑤治療完遂度について傾向を分析した。なお、本研究は、量子科学技術研究開発機構(QST)とJASTROの共同研究としてQSTのIRBの承認を得て実施されている。 【結果】登録施設数は15年の86施設に対し19年は124施設と44％増、データ数は15年の約4万件に対し19年は約6万件と5割増であった。19年の地域別割合は、北海道、中国、四国では治療施設数全体の10％以下であった。男女別割合は男性55％、女性45％で経年変化はなかった。調査項目別登録率は、患者情報は約50%、疾患情報と治療情報は約30％、予後情報は13％と最も低かったが、有害事象の有無や最終確認日は増加傾向であった。疾患別割合は、乳癌と肺癌・気管･縦隔腫瘍で約20％、泌尿器系腫瘍約15％で経年変化はなかった。生死の状況は、生存が約70％、死亡が約20％で経年変化はなかった。治療完遂度は、疾患全体の予定完遂がX線70％以上、電子線95％以上で経年変化はなかった。 【結語】JRODへの登録施設は年々増加しており、全国の放射線治療症例の傾向を把握することはできた。しかし、登録施設数は治療施設数全体の15%に過ぎないため、学会として登録施設数を増やすための方策を検討する必要がある。, 日本放射線腫瘍学会第33回学術大会

Published
2020

38. Japanese Structure Survey of Radiation Oncology in 2007 with Special Reference to Designated Cancer Care Hospitals

Author

Numasaki, Hodaka, Shibuya, Hitoshi, Nishio, Masamichi, Ikeda, Hiroshi, Sekiguchi, Kenji, Kamikonya, Norihiko, Koizumi, Masahiko, Tago, Masao, Ando, Yutaka, Tsukamoto, Nobuhiro, Terahara, Atsuro, Nakamura, Katsumasa, Mitsumori, Michihide, Nishimura, Tetsuo, Hareyama, Masato, Teshima, Teruki, and and of Committee, Japanese Society Therapeutic Radiology Oncology Database Committee

Published
2011
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40. Comprehensive Registry of Esophageal Cancer in Japan, 2001

Author

Ozawa, Soji, Tachimori, Yuji, Baba, Hideo, Matsubara, Hisahiro, Muro, Kei, Numasaki, Hodaka, Oyama, Tsuneo, Shinoda, Masayuki, Takeuchi, Hiroya, Tanaka, Otsuo, Teshima, Teruki, Udagawa, Harushi, Uno, Takashi, Yamana, Hideaki, Konishi, Toshiro, and Barron, J. Patrick

Published
2009
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43. Japanese structure survey of radiation oncology in 2015.

Author

Numasaki, Hodaka, Nakada, Yoshihiro, Okuda, Yasuo, Ohba, Hisateru, Teshima, Teruki, Ogawa, Kazuhiko, and Committee, Japanese Society for Radiation Oncology Database

Subjects
LINEAR accelerators, RADIATION, INTENSITY modulated radiotherapy, ONCOLOGY, TECHNOLOGISTS
Abstract

This article describes the ongoing structure of radiation oncology in Japan in terms of equipment, personnel, patient load and geographic distribution to identify and overcome any existing limitations. From May 2016 to August 2018, the Japanese Society for Radiation Oncology conducted a questionnaire based on the Japanese national structure survey of radiation oncology in 2015. 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 225 000 and 271 000, respectively. Additionally, the estimated cancer incidence was 891 445 cases with approximately 25.2% of all newly diagnosed patients being treated with radiation. The types and numbers of treatment devices actually used included linear accelerator (linac; n  = 936), Gamma Knife (n  = 43), 60Co remote afterloading system (RALS; n  = 21), and 192Ir RALS (n  = 129). The linac system used dual-energy functions in 754 units, 3D conformal radiotherapy functions in 867, and intensity-modulated radiotherapy (IMRT) functions in 628. There were 899 Japan Radiological Society/Japanese Society for Radiation Oncology-certified radiation oncologists (RO), 1213.9 full-time equivalent (FTE) ROs, 2394.2 FTE radiotherapy technologists (RTT), 295.7 FTE medical physicists, 210.2 FTE radiotherapy quality managers, and 906.1 FTE nurses. The frequency of IMRT use significantly increased during this time. In conclusion, the Japanese structure of radiation oncology has clearly improved in terms of equipment and utility although there was a shortage of personnel in 2015. [ABSTRACT FROM AUTHOR]

Published
2022
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47. Comprehensive registry of esophageal cancer in Japan, 2013.

Author

Watanabe, Masayuki, Tachimori, Yuji, Oyama, Tsuneo, Toh, Yasushi, Matsubara, Hisahiro, Ueno, Masaki, Kono, Koji, Uno, Takashi, Ishihara, Ryu, Muro, Kei, Numasaki, Hodaka, Tanaka, Koji, Ozawa, Soji, Murakami, Kentaro, Usune, Shiyori, Takahashi, Arata, and Miyata, Hiroaki

Abstract

Background: Esophageal cancer is the eighth most common cause of cancer mortality in Japan. More than 11,000 people had died from esophageal cancer in 2018. The Japan Esophageal Society has collected the data on patients' characteristics, performed treatment, and outcomes annually. Methods: We analyzed the data of patients who had first visited the participating hospitals in 2013. In 2019, the data collection method was changed from an electronic submission to a web-based data collection using the National Clinical Database (NCD). Japanese Classification of Esophageal Cancer 10th by the Japan Esophageal Society (JES) and UICC TNM Classification 7th were used for cancer staging Results: A total of 8019 cases were registered from 334 institutions in Japan. Squamous cell carcinoma and adenocarcinoma accounted for 87.8% and 6.3%, respectively. The 5-year survival rates of patients treated using endoscopic resection, concurrent chemoradiotherapy, radiotherapy alone, or esophagectomy were 88.3%, 32.4%, 24.4%, and 59.3%, respectively. Esophagectomy was performed in 4910 cases. The operative and the hospital mortality rates were 0.77% and 1.98%, respectively. The survival curves showed a good discriminatory ability both in the clinical and pathologic stages by the JES system. The 5-year survival rate of patients with pStage IV in the UICC classification that included patients with supraclavicular node metastasis was better than that of patients with pStage IVb in JES classification. Conclusion: We hope this report contributes to improving all aspects of the diagnosis and treatment of esophageal cancer in Japan. [ABSTRACT FROM AUTHOR]

Published
2021
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48. Japanese structure survey of radiation oncology in 2013.

Author

Numasaki, Hodaka, Teshima, Teruki, Okuda, Yasuo, Ogawa, Kazuhiko, and Committee, Japanese Society for Radiation Oncology Database

Subjects
RADIOTHERAPY, ONCOLOGY, RADIATION therapy equipment, RADIOLOGISTS, RADIATION workers
Abstract

This paper describes the ongoing structure of radiation oncology in Japan in terms of equipment, personnel, patient load and geographic distribution to identify and overcome any existing limitations. From December 2014 to July 2017, the Japanese Society for Radiation Oncology conducted a questionnaire based on the Japanese national structure survey of radiation oncology in 2013. Data were analyzed based on 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 216 000 and 257 000, respectively. Additionally, the estimated cancer incidence was 862 452 cases with ~25.0% of all newly diagnosed patients being treated with radiation. The types and numbers of treatment devices actually used included linear accelerator (LINAC; n  = 880), Gamma Knife (n  = 45), 60Co remote afterloading system (RALS; n  = 23) and 192Ir RALS (n  = 128). The LINAC system used dual-energy functions in 675 units, 3D conformal radiotherapy functions in 785 and intensity-modulated radiotherapy (IMRT) functions in 494. There were 831 Japan Radiological Society/Japanese Society for Radiation Oncology-certified radiation oncologists, 1130.6 full-time equivalent (FTE) radiation oncologists, 2214.6 FTE radiotherapy technologists, 196.6 FTE medical physicists, 183.8 FTE radiotherapy quality managers and 856.7 FTE nurses. The frequency of IMRT use significantly increased during this time. In conclusion, the Japanese structure of radiation oncology has clearly improved in terms of equipment and utility although there was a shortage of personnel in 2013. [ABSTRACT FROM AUTHOR]

Published
2020
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50. 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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