Development of deformable image registration-based dose accumulation between external beam radiotherapy and brachytherapy in cervical cancer patients
Project/Area Number |
15K19199
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Medical Physics and Radiological Technology
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Research Institution | Tohoku University |
Principal Investigator |
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Project Period (FY) |
2015-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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Keywords | 放射線治療 / 子宮頸癌 / 非剛体レジストレーション / 画像変形 / 合算線量 / RALS / 線量分布 / 小線源治療 / 線量合算 / 医学物理 / 非剛体位置照合 / ガラス線量計 / 非剛体位置合わせ |
Outline of Final Research Achievements |
In this study, we aim to develop deformable image registration (DIR) -based dose accumulation between external beam radiotherapy and brachytherapy in cervical cancer patients. First, deformable female pelvis phantom was created by the 3D printer. Then, DIR accuracies of two different DIR methods (intensity-based DIR and hybrid DIR) were evaluated using the deformable phantom. Finally, we clarified the accuracy of DIR-based dose accumulation using the two DIR methods, showing that hybrid DIR had the great potential for constructing the accurate DIR-based dose accumulation system.
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Academic Significance and Societal Importance of the Research Achievements |
本研究成果を実用化させることで、子宮頸がんの外部照射と腔内照射併用症例において、患者ごとに腫瘍および危険臓器への正確な線量を把握することができ、より患者に適したオーダーメードの放射線治療計画を立案することが可能となる。また、この技術を利用し、これまでに治療した症例の積算線量を解析することで、腫瘍への線量と治癒率、危険臓器への線量と障害発生率の関係も明らかにすることができ、子宮頸がんの放射線治療において非常に重要なデータを算出することができる。
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Report
(5 results)
Research Products
(14 results)
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[Journal Article] Evaluation of deformable image registration between external beam radiotherapy and HDR brachytherapy for cervical cancer with a 3D-printed deformable pelvis phantom2017
Author(s)
Kadoya N, Miyasaka Y, Nakajima Y, Kuroda Y, Ito K, Chiba M, Sato K, Dobashi S, Yamamoto T, Takahashi N, Kubozono M, Takeda K, Jingu K.
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Journal Title
Medical Physcis
Volume: 印刷中
Issue: 4
Pages: 1445-1455
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Evaluation of the performance of deformable image registration between planning CT and CBCT images for the pelvic region: comparison between hybrid and intensity-based DIR.2017
Author(s)
Takayama Y, Kadoya N, Yamamoto T, Ito K, Chiba M, Fujiwara K, Miyasaka Y, Dobashi S, Sato K, Takeda K, Jingu K.
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Journal Title
Journal of Radiation Research
Volume: 印刷中
Issue: 4
Pages: 567-571
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Journal Article] Multi-institutional Validation Study of Commercially Available Deformable Image Registration Software for Thoracic Images.2016
Author(s)
Kadoya N, Nakajima Y, Saito M, Miyabe Y, Kurooka M, Kito S, Fujita Y, Sasaki M, Arai K, Tani K, Yagi M, Wakita A, Tohyama N, Jingu K.
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Journal Title
International Journal of Radiation Oncology*Biology* Physics
Volume: 96
Pages: 422-431
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Presentation] Multi-institutional validation study of commercially available deformable image registration software for thoracic images2016
Author(s)
Kadoya N, Nakajima Y, Saito M, Miyabe Y, Kurooka M, Kito S, Sasaki M, Fujita Y, Arai K, Tani K, Yagi M, Wakita A, Tohyama N, Jingu K
Organizer
第29回日本放射線腫瘍学会学術大会
Place of Presentation
国立京都国際会館、京都
Year and Date
2016-11-25
Related Report
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[Presentation] Multi-institutional validation study of commercially available deformable image registration software for thoracic images2016
Author(s)
Kadoya N, Nakajima Y, Saito M, Miyabe Y, Kurooka M, Kito S, Sasaki M, Fujita Y, Arai K, Tani K, Yagi M, Wakita A, Tohyama N, Jingu K
Organizer
第58回米国医学物理学会学術大会
Place of Presentation
ワシントン (米国)
Year and Date
2016-07-31
Related Report
Int'l Joint Research
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