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National survey of patient specific IMRT quality assurance in China.

Publication ,  Journal Article
Pan, Y; Yang, R; Zhang, S; Li, J; Dai, J; Wang, J; Cai, J
Published in: Radiat Oncol
April 25, 2019

BACKGROUND: To analyze and present the China's national survey on patient-specific IMRT quality assurance (QA). METHODS: A national survey was conducted in all radiotherapy centers in China to collect comprehensive information on status of IMRT QA practice, including machine, technique, equipment, issues and suggestions. RESULTS: Four hundred and three centers responded to this survey, accounting for 56.92% of all the centers implementing IMRT in China. The total number of medical physicists and the total number of patients treated with IMRT annually in these centers was 1599 and 305,000 respectively. All centers implemented measurement-based verification. Point dose verification and 2D dose verification was implemented in 331 and 399 centers, respectively. Three hundred forty-eight centers had 2D arrays, and 52 centers had detector devices designed to measure VMAT beams. EPID and film were used in 78 and 70 centers, respectively. Seventeen and 20 centers used log file and 3D DVH analysis, respectively. One hundred sixty-eight centers performed measurement-based verification not for each patient based on different selection criteria. The techniques and methods varied significantly in both point dose and dose distribution verification, from evaluation metrics, criteria, tolerance limit, and steps to check failed IMRT QA plans. Major issues identified in this survey were the limited resources of physicists, QA devices, and linacs. CONCLUSIONS: IMRT QA was implemented in all the surveyed centers. The practice of IMRT QA varied significantly between centers. An increase in personnel, QA devices and linacs is highly desired. National standard, guideline, regulation and training programs are urgently needed in China for consistent and effective implementation of IMRT QA.

Duke Scholars

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Published In

Radiat Oncol

DOI

EISSN

1748-717X

Publication Date

April 25, 2019

Volume

14

Issue

1

Start / End Page

69

Location

England

Related Subject Headings

  • Surveys and Questionnaires
  • Radiotherapy, Intensity-Modulated
  • Radiotherapy Planning, Computer-Assisted
  • Radiotherapy Dosage
  • Quality Assurance, Health Care
  • Particle Accelerators
  • Organs at Risk
  • Oncology & Carcinogenesis
  • Neoplasms
  • Humans
 

Citation

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Pan, Y., Yang, R., Zhang, S., Li, J., Dai, J., Wang, J., & Cai, J. (2019). National survey of patient specific IMRT quality assurance in China. Radiat Oncol, 14(1), 69. https://doi.org/10.1186/s13014-019-1273-5
Pan, Yuxi, Ruijie Yang, Shuming Zhang, Jiaqi Li, Jianrong Dai, Junjie Wang, and Jing Cai. “National survey of patient specific IMRT quality assurance in China.Radiat Oncol 14, no. 1 (April 25, 2019): 69. https://doi.org/10.1186/s13014-019-1273-5.
Pan Y, Yang R, Zhang S, Li J, Dai J, Wang J, et al. National survey of patient specific IMRT quality assurance in China. Radiat Oncol. 2019 Apr 25;14(1):69.
Pan, Yuxi, et al. “National survey of patient specific IMRT quality assurance in China.Radiat Oncol, vol. 14, no. 1, Apr. 2019, p. 69. Pubmed, doi:10.1186/s13014-019-1273-5.
Pan Y, Yang R, Zhang S, Li J, Dai J, Wang J, Cai J. National survey of patient specific IMRT quality assurance in China. Radiat Oncol. 2019 Apr 25;14(1):69.
Journal cover image

Published In

Radiat Oncol

DOI

EISSN

1748-717X

Publication Date

April 25, 2019

Volume

14

Issue

1

Start / End Page

69

Location

England

Related Subject Headings

  • Surveys and Questionnaires
  • Radiotherapy, Intensity-Modulated
  • Radiotherapy Planning, Computer-Assisted
  • Radiotherapy Dosage
  • Quality Assurance, Health Care
  • Particle Accelerators
  • Organs at Risk
  • Oncology & Carcinogenesis
  • Neoplasms
  • Humans