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Commissioning and Comprehensive Quality Assurance of commercial 3D Treatment Planning System using IAEA Technical Report Series — 430

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Abstract

The purpose of this work is to report the results of commissioning and to establish a quality assurance (QA) program for commercial 3D treatment planning system (TPS) based on IAEA Technical Report Series 430. Eclipse™ v 7.3.10, (Varian Medical Systems, Palo Alto, CA, USA) TPS was commissioned for a Clinac 6EX (Varian Medical Systems, Palo Alto, CA, USA) linear accelerator. CT images of a phantom with various known in-homogeneities were acquired. The images were transferred to TPS and tested for various parameters related to patient data acquisition, anatomical modeling, plan evaluation and dose calculation. Dosimetric parameters including open, asymmetric and wedged shaped fields, oblique incidence, buildup region behavior and SSD dependence were evaluated. Representative clinical cases were tested for MU calculation and point doses. The maximum variation between the measured and the known CT numbers was 20 ± 11.7 HU (1 SD). The results of all non-dosimetric tests were found within tolerance, however expansion at the sharp corners was found distorted. The accuracy of the DVH calculations depends on the grid size. TPS calculations of all the dosimetric parameters were in good agreement with the measured values, however for asymmetric open and wedged fields, few points were found out of tolerance. Smaller grid size calculation showed better agreement of dose calculation in the build-up region. Independent tests for MU calculation showed a variation within ±2% (relative to planning system), meanwhile variation of 3.0% was observed when the central axis was blocked. The test results were in agreement with the tolerance specified by IAEA TRS 430. A subset of the commissioning tests has been identified as a baseline data for an ongoing QA program.

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References

  1. International Atomic Energy Agency, Commissioning and quality assurance of computerized planning systems for radiation treatment of cancer, Technical Report Series No. 430, IAEA, Vienna, 2004.

  2. International Commission on Radiological Protection, Prevention of Accidental Exposures to Patients Undergoing Radiation Therapy, Publication 86, Pergamon Press, Oxford and New York, 2000.

  3. Fraass, B., Doppke, K., Hunt, M., Starkschall, G., Stern, R. and Van Dyke, J.,American Association of Physicists in Medicine Radiation Therapy Committee Task Group 53, Quality assurance for clinical radiotherapy treatment planning, Med. Phys., 25;1773–1829, 1998.

    Article  CAS  PubMed  Google Scholar 

  4. Mijnheer, B., Olszewska, A., Fiorino, C., Hartmann, G., Knöös, T., Rosenwald, J.C. and Welleweerd, H.,Quality assurance of treatment planning systems: practical examples for non-IMRT photon beams, Estro Booklet No. 7, ESTRO, Brussels 2004.

    Google Scholar 

  5. International Commission on Radiation Units and Measurements, Use of Computers in External Beam Radiotherapy Procedures witrh High Energy Photons and Electrons, Report 42, ICRU, Bethesda, MD, 1987.

  6. Technical Report series 398, Absorbed dose determination external beam radiotherapy: An International Code of Practice for Dosimetry Based on Standards of Absorbed Dose to Water. International Atomic Energy Agency Vienna, 84–103, 2000.

  7. Camargo, P.L., Rodrigues, L.N., Furnari, L. and Rubo, R.A.,Implementation of a quality assurance program for computerized treatment planning systems, Med. Phys., 34 (7): 2827–2836, 2007.

    Article  PubMed  Google Scholar 

  8. Venselaar, J., Welleweerd, H. and Mijnheer, B.,Tolerances for the accuracy of photon beam dose calculations of treatment planning systems, Radiother. Oncol. 60; 191–201, 2001.

    Article  CAS  PubMed  Google Scholar 

  9. Mijnheer, B., Bridier, A., Garibaldi, C., Torzsok, K. and Venselaar, J.L.M.,Monitor unit calculation for high energy photon beams — practical examples, ESTRO Booklet No. 6, ESTRO, Brussels, Belgium, 2001.

    Google Scholar 

  10. Van Dyk, J., Barnett, R.B., Cygler, J.E. and Shragge, P.C.,Commissioning Quality Assurance of treatment planning computers, Int. J. Radiat. Oncol. Bio. Phys., 26:261–273, 1993.

    Google Scholar 

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Authors and Affiliations

  1. Department of Medical Physics, Tata Memorial Hospital, Dr. Ernest Borges Marg, Parel, 400 012, Mumbai, India

    S. V. Jamema, R. R. Upreti, S. Sharma & D. D. Deshpande

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  1. S. V. Jamema
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  2. R. R. Upreti
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  3. S. Sharma
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  4. D. D. Deshpande
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Correspondence to S. V. Jamema.

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Jamema, S.V., Upreti, R.R., Sharma, S. et al. Commissioning and Comprehensive Quality Assurance of commercial 3D Treatment Planning System using IAEA Technical Report Series — 430. Australas. Phys. Eng. Sci. Med. 31, 207–215 (2008). https://doi.org/10.1007/BF03179346

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  • DOI: https://doi.org/10.1007/BF03179346

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