21-23 Feb 2014 International Workshop on Radiation and Thyroid Cancer

The International Workshop on Radiation and Thyroid Cancer took place 21-23 February 2014 at Shinagawa Prince Hotel in Tokyo. It was organized by the Japanese Ministry of Environment (MoE), Fukushima Medical University (FMU), and the Organization for Economic Cooperation and Development/Nuclear Energy Agency (OECD/NEA). The workshop began with a half-day tutorial session, followed by two days of plenary presentations and discussion, including panel sessions summarizing the results of each session. There were 165 participants on the 1st day, 160 on the 2nd day and 145 on the 3rd day.

The objective of this workshop was to develop state-of-the-art scientific understanding of radiation-induced thyroid cancer, and to share knowledge and experience in this area in order to support the efforts of the Japanese government and Fukushima Prefecture to enhance public health. The presentations and discussions were available via webcast.

Abstracts, presentation materials, and videos have been uploaded to the extent granted by each author. Please note that authors of the presentation material retain their rights and responsibilities concerning the contents of the presentation materials.

Some presentation materials were modified by the author’s request.

1.The Program  
2.Co-Chairs’ Summary  
3.The Presentation Materials, Videos and Abstracts


Day 1, Friday, 21 Feb. 2014

 13:00 Opening: Welcome from Workshop Host Organizations
 13:00  – Welcome from MoE
 13:05  – Welcome from FMU
 13:10  – Welcome from OECD/NEA
 13:15 Session 1: Radiation and Thyroid Cancer
Co-Chair: Dr. Shigenobu Nagataki (Nagasaki University, Japan)
Co-Chair: Dr. Emilie van Deventer (WHO1)
 13:25 1.1 Radiation-induced Thyroid Cancer
Presenter: Dr. Christoph Reiners (University of Würzburg , Germany)
 14:10 1.2 Overview of the Fukushima Health Management Survey
Presenter: Dr. Seiji Yasumura (FMU, Japan)
 15:25 1.3 Overview of epidemiology of thyroid cancer in the context of the Fukushima accident
Presenter: Dr. Joachim Schüz (IARC2)
 16:10 1.4 Overview of the Clinical Features of Thyroid Cancer: Treatment of Asymptomatic Papillary Microcarcinoma of the Thyroid
Presenter: Dr. Akira Miyauchi (Kuma Hospital, Japan)
 16:55 1.5 Using Risk Communications approach for Dialogue with Stakeholders in Complex Radiological Circumstances
Presenter: Dr. Gaya Gamhewage (WHO)
17:10 Discussion and Questions

 Day 2, Saturday, 22 Feb. 2014

09:30 Session 2: Dose Estimations for Those Affected in Fukushima Prefecture
Co-Chair: Dr. Makoto Akashi (NIRS3, Japan)
Co-Chair: Dr. Joanne Brown (PHE CRCE4, UK)
 09:40  2.1 WHO Thyroid Dose Estimation following the Fukushima Daiichi NPP accident
Presenter: Dr Emilie van Deventer (WHO)
 10:00  2.2 Basic Survey: External Dose Estimation
Presenter: Dr. Tetsuo Ishikawa (FMU, Japan)
 10:20  2.3 NIRS Estimation of Internal Dose to the Thyroid
Presenter: Dr. Osamu Kurihara (NIRS, Japan)
 10:40  2.4 Thyroid equivalent doses due to radioiodine(I-131) intake for evacuees caused by the nuclear accident in Fukushima
Presenter: Dr. Shinji Tokonami (Hirosaki University, Japan)
 11:00  BREAK
 11:30  Discussion
 12:00  LUNCH
 13:00  Session 3: Thyroid Ultrasound Examination and Thyroid cancers
Co-Chair: Dr. Kenji Kamiya (Hiroshima University, Japan)
Co-Chair: Prof. Mykola Tronko (NAMS5, Ukraine)
 13:10  3.1 FMU Thyroid Ultrasound Surveys in Fukushima Prefecture
Presenter: Dr. Shinichi Suzuki (FMU, Japan)
13:30 3.2 Thyroid Ultrasound Survey in Yamanashi Prefecture and review of latent thyroid cancers
Presenter: Dr. Hiroki Shimura (FMU, Japan)
13:50 3.3 Childhood Thyroid Cancer in Korea
Presenter: Prof. Jae Hoon Chung (Sungkyunkwan University School of Medicine, Korea)
14:40 Discussion
15:10 Session 4: Thyroid Cancer Risk Estimates
Co-Chair: Dr. Kazuo Sakai (NIRS, Japan)
Co-Chair: Dr. Roy Shore (RERF6, Japan)
15:20 4.1 Ultrasonography surveys and thyroid cancer in the Fukushima Prefecture
Presenter: Dr. Peter Jacob (Helmholtz Zentrum Munchen, Germany)
15:40 4.2 Thyroid Dose Estimation for Epidemiological Studies
Presenter: Dr. André Bouville (NCI7, United States)
16:00 4.3 Thyroid Cancer Risk from In Utero Exposure to Chernobyl Fallout
Presenter: Dr. Maureen Hatch (NCI, United States)
16:20 Discussion
Panelists: Dr. Peter Jacob, Dr. Andre Bouville, Dr. Maureen Hatch
17:00 End of the Second Day

 Day 3, Sunday, 23 Feb. 2014

09:30 Session 5: Experience with Post-Accident Radiation-induced Childhood Thyroid Cancer
Co-Chair: Dr. Yasuhito Sasaki (Hidaka Hospital, Japan)
Co-Chair: Dr. Thierry Schneider (CEPN8, France)
 09:40  5.1 Thyroid Disease among A-bomb Survivors Exposed in Childhood
Presenter: Dr. Roy Shore (RERF, Japan)
 10:00  5.2 Childhood Thyroid Cancer in Russia Following the Chernobyl accident
Presenter: Prof. Viktor Ivanov (MRRC RAMS9, Russia)
 10:20  5.3 Childhood Thyroid Cancer in Ukraine Following the Chernobyl accident
Presenter: Prof. Mykola Tronko (NAMS, Ukraine)
 10:40 5.4 Childhood Thyroid Cancer in Belarus Following the Chernobyl accident
Presenter: Prof. Yuri Demidchik (BelMAPO10, Belarus)
11:00   BREAK
 11:30  5.5 Medical follow-up in the Marshall islands: an overview of sixty years of clinical experience
Presenter: Dr. Ashok Vaswani (DOE11, United States)
 11:50  5.6 Thyroid Survey Plans for TEPCO Workers
Presenter: Dr. Tomotaka Sobue (Osaka University, Japan)
 12:10  Discussion
 12:30  LUNCH
13:30 Session 6: Stakeholder Involvement Experience
Co-Chair: Dr. Ohtsura Niwa (FMU, Japan)
Co-Chair: Dr. Michael Siemann (OECD NEA)
Introductory presentation on CRPPH contribution to stakeholder involvement
Presenter: Dr. Michael Siemann (OECD NEA)
13:50 6.1 Experience with Stakeholders Engagement in Post-Accident Situations
Presenter: Mr. Jacques Lochard (ICRP)
14:10 6.2 Experience from the French Nord Cotentin Study: Involving stakeholders in the planning, implementation and assessment of dose assessment and risk estimate studies
Presenter: Dr. Thierry Schneider (CEPN, France)
14:30 6.3 Recovery and Reconstitution Model of Kawauchi Village after the Fukushima NPP accident
Presenter: Dr. Noboru Takamura (Nagasaki University, Japan)
14:50 BREAK
15:20 6.4 Communication with Residents and Prefectural University Medical School and Topics in the 2 Years since the Incident
Presenter: Mr. Shiro Matsui (FMU, Japan)
15:40 6.5 The Science of Estimating Individual Risk ? Steps Beyond Effective Dose
Presenter: Dr. Wesley Bolch (University of Florida, United States)
16:00 Discussions
16:30 Summary of the Workshop Results
Presenter: Dr. Shigenobu Nagataki (Nagasaki University, Japan), Dr. Kazuo Sakai (NIRS, Japan), Dr. Ohtsura Niwa (FMU, Japan)
Closing Remarks
Presenter: Dr. Shunichi Yamashita (Nagasaki University, Japan)
17:00 Press Conference

1: World Health Organization
2: International Agency for Research on Cancer
3: National Institute of Radiological Sciences
4: Centre for Radiation, Chemical and Environmental Hazards, Public Health England
5: National Academy of Medical Sciences
6: Radiation Effects Research Foundation
7: National Cancer Institute
8: Nuclear Protection Evaluation Center
9: Medical Radiological Research Centre of the Russian Academy of Medical Sciences
10: Belarusian Medical Academy of Postgraduate Education
11: Department of Energy