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The Application of Active Respiratory Gating Technology in Lung Cancer Radiotherapy

Received: 28 August 2014     Accepted: 10 September 2014     Published: 20 September 2014
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Abstract

Objective: The technology of ABC ( Active Breathing Control) was used in breath-holding time in order to improve the accuracy of radiotherapy for lung cancer patients, and the influence of respiratory movement on diaphragm motion was analyzed and evaluated, in addition the feasibility and limitation of ABC was also assessed. Methods: 15 lung cancer patients were selected for the training of ABC, at the beginning of the training, let the patients practice breath-holding by themselves at home: the practice time is 30 minutes a day, one week practice, therefore the patients slowly adapted to the new breath-holding time, which is more than 40 seconds. In the CT scan and reset simulation, the images of ABC and FB( Free Breathing) were collected respectively; At the same time of precise radiation treatment, the error values between the CT images by using ABC system and the images of the real-time scans were collected. Results: The breath-holding time of the 15 patients were more than 40 seconds, and their average breath-holding time achieved 58.3 seconds, it is longer than that of the patients before training by 24.9 seconds. The diaphragm motion is reduced by 16.76mm than that of the free breathing. In the precise radiotherapy by using ABC, the average errors of left and right, head and feet , front and back were 0.29mm, 0.51mm, 0.49mm; After the bed displacement, the average errors were 0.08cm,0.18cm,0.15 cm. Conclusions: After using ABC system in the precise radiotherapy, the average error range of left and right, head and feet , front and back was within 2mm, and the respiratory diaphragm motion was smaller than before, so the radiation effect became more accurate, and this provided more protection for the patients.

Published in Advances in Bioscience and Bioengineering (Volume 2, Issue 3)
DOI 10.11648/j.abb.20140203.11
Page(s) 25-29
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

ABC (Active Breathing Control), Lung Cancer, CBCT (Cone Beam Computer Tomo-Graphy), Breathing Movement

References
[1] Huang Wei, Li Baosheng.The effects and control of respiratory movement on the target area of lung tumorin the precise radiotherapy ,Journal of International Oncology,2005,1(32):53—55.
[2] Jaffray DA,Siewerdsen JH,Wang JW. Flat-panel cone beam computed tomo graphy for image-guide radition therapy.int J Radiati oncol Biol phys, 2002.53:1337-1349.
[3] Qnimaru R,shirato H,shimizuS .Tolerance of organs at risk in small volume,hypofractionated, image-guide radiotherapy for primary and metastatic lung cancers,int j Radiat oncol Biolphys,2003,56:126-135.
[4] Yao Chunping, Yu Jinming, Li JIanbing. Application of active breathing control in postoperative radiotherapy after breast surgery,Chinese Journal of Radiation Oncology, 2006,15(3):211~214.
[5] Qiu Jianjian, Chen Jiayi, Jiang Guoliang. The methods of breast cancer radiotherapy in which the ABC system was combined with forward IMRT. Chinese Journal of Radiation Oncology, 2006,15(4):304~306.
[6] Du Shisuo,Zeng Shaochong, The application study of the ABC system in the three-dimensional conformal radiotherapy of liver cancer, Chinese Journal of Radiation Oncology, 2006,15(4):368—370.
[7] Yan Jing, Yu Jinming,Application of active breathing control system in accurate radiotherapy of non-small cell lung cancer ,Cancer,2006,25(10):1311—1314.
[8] Cheung PC,sixel KE.Reproducibility ofLung tumor position and reduction of Lung re&q8 within the planning target volume u•sing active breathing control(ABC)[J].Int J Radiat Oncol BiolPhys.2003,57(5):1437~1442.
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    Bo Xiao. (2014). The Application of Active Respiratory Gating Technology in Lung Cancer Radiotherapy. Advances in Bioscience and Bioengineering, 2(3), 25-29. https://doi.org/10.11648/j.abb.20140203.11

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    Bo Xiao. The Application of Active Respiratory Gating Technology in Lung Cancer Radiotherapy. Adv. BioSci. Bioeng. 2014, 2(3), 25-29. doi: 10.11648/j.abb.20140203.11

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    AMA Style

    Bo Xiao. The Application of Active Respiratory Gating Technology in Lung Cancer Radiotherapy. Adv BioSci Bioeng. 2014;2(3):25-29. doi: 10.11648/j.abb.20140203.11

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  • @article{10.11648/j.abb.20140203.11,
      author = {Bo Xiao},
      title = {The Application of Active Respiratory Gating Technology in Lung Cancer Radiotherapy},
      journal = {Advances in Bioscience and Bioengineering},
      volume = {2},
      number = {3},
      pages = {25-29},
      doi = {10.11648/j.abb.20140203.11},
      url = {https://doi.org/10.11648/j.abb.20140203.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.abb.20140203.11},
      abstract = {Objective: The technology of ABC ( Active Breathing Control) was used in breath-holding time in order to improve the accuracy of radiotherapy for lung cancer patients, and the influence of respiratory movement on diaphragm motion was analyzed and evaluated, in addition the feasibility and limitation of ABC was also assessed. Methods: 15 lung cancer patients were selected for the training of ABC, at the beginning of the training, let the patients practice breath-holding by themselves at home: the practice time is 30 minutes a day, one week practice, therefore the patients slowly adapted to the new breath-holding time, which is more than 40 seconds. In the CT scan and reset simulation, the images of ABC and FB( Free Breathing) were collected respectively; At the same time of precise radiation treatment, the error values between the CT images by using ABC system and the images of the real-time scans were collected. Results: The breath-holding time of the 15 patients were more than 40 seconds, and their average breath-holding time achieved 58.3 seconds, it is longer than that of the patients before training by 24.9 seconds. The diaphragm motion is reduced by 16.76mm than that of the free breathing. In the precise radiotherapy by using ABC, the average errors of left and right, head and feet , front and back were 0.29mm, 0.51mm, 0.49mm; After the bed displacement, the average errors were 0.08cm,0.18cm,0.15 cm. Conclusions: After using ABC system in the precise radiotherapy, the average error range of left and right, head and feet , front and back was within 2mm, and the respiratory diaphragm motion was smaller than before, so the radiation effect became more accurate, and this provided more protection for the patients.},
     year = {2014}
    }
    

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  • TY  - JOUR
    T1  - The Application of Active Respiratory Gating Technology in Lung Cancer Radiotherapy
    AU  - Bo Xiao
    Y1  - 2014/09/20
    PY  - 2014
    N1  - https://doi.org/10.11648/j.abb.20140203.11
    DO  - 10.11648/j.abb.20140203.11
    T2  - Advances in Bioscience and Bioengineering
    JF  - Advances in Bioscience and Bioengineering
    JO  - Advances in Bioscience and Bioengineering
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    PB  - Science Publishing Group
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    UR  - https://doi.org/10.11648/j.abb.20140203.11
    AB  - Objective: The technology of ABC ( Active Breathing Control) was used in breath-holding time in order to improve the accuracy of radiotherapy for lung cancer patients, and the influence of respiratory movement on diaphragm motion was analyzed and evaluated, in addition the feasibility and limitation of ABC was also assessed. Methods: 15 lung cancer patients were selected for the training of ABC, at the beginning of the training, let the patients practice breath-holding by themselves at home: the practice time is 30 minutes a day, one week practice, therefore the patients slowly adapted to the new breath-holding time, which is more than 40 seconds. In the CT scan and reset simulation, the images of ABC and FB( Free Breathing) were collected respectively; At the same time of precise radiation treatment, the error values between the CT images by using ABC system and the images of the real-time scans were collected. Results: The breath-holding time of the 15 patients were more than 40 seconds, and their average breath-holding time achieved 58.3 seconds, it is longer than that of the patients before training by 24.9 seconds. The diaphragm motion is reduced by 16.76mm than that of the free breathing. In the precise radiotherapy by using ABC, the average errors of left and right, head and feet , front and back were 0.29mm, 0.51mm, 0.49mm; After the bed displacement, the average errors were 0.08cm,0.18cm,0.15 cm. Conclusions: After using ABC system in the precise radiotherapy, the average error range of left and right, head and feet , front and back was within 2mm, and the respiratory diaphragm motion was smaller than before, so the radiation effect became more accurate, and this provided more protection for the patients.
    VL  - 2
    IS  - 3
    ER  - 

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Author Information
  • Dept. Of Biomedical Engineering, Luzhou Medical College, Luzhou, Sichuan, 646000, China

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