Statistical process control for radiotherapy quality assurance

Medical Physics

Volumn 32, Issue 9, 2005, Pages 2777-2786

  Pawlicki, Todd ^a   Whitaker, Matthew ^b   Boyer, Arthur L ^a  

^a STANFORD UNIVERSITY SCHOOL OF MEDICINE   (United States)

^b Radiological Imaging Technology Inc   (United States)

Author keywords

Process behavior charts; Quality assurance; Statistical process control

Indexed keywords

CONTROL CHARTS; GRAPHIC METHODS; QUALITY ASSURANCE; RADIOTHERAPY; RANDOM ERRORS; STATISTICS; SYSTEMATIC ERRORS;

MEDICAL PHYSICISTS; PROCESS BEHAVIOR; PROCESS BEHAVIOR CHARTS; QUALITY ASSURANCE PRACTICES; QUALITY ASSURANCE PROCESS; STANDARD DEVIATION; SYSTEMATIC CHANGES; THEORETICAL DEVELOPMENT;

STATISTICAL PROCESS CONTROL;

ANALYTICAL ERROR; ARTICLE; CALCULATION; DECISION MAKING; PILOT STUDY; PRIORITY JOURNAL; QUALITY CONTROL; RADIOTHERAPY; STATISTICS;

EID: 25644461233     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.2001209     Document Type: Article

References (36)

1. A. L. Boyer and T. Schultheiss, "Effects of dosimetric and clinical uncertainty on complication-free local tumor control," Radiother. Oncol. 11, 65-71 (1988).
2. A. Brahme, "Dosimetric precision requirements in radiation therapy," Acta Radiol. Oncol. 23, 379-391 (1984).
3. G. J. Kutcher et al., "Comprehensive QA for radiation oncology: Report of AAPM Radiation Therapy Committee Task Group 40," Med. Phys. 21, 581-618 (1994).
4. R. Nath et al, "AAPM code of practice for radiotherapy accelerators: Report of AAPM Radiation Therapy Task Group No. 45 (see comment)," Med. Phys. 21, 1093-1121 (1994).
5. B. Fraass et al., "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).
6. S. Mutic et al., "Quality assurance for computed-tomography simulators and the computed-tomography-simulation process: Report of the AAPM Radiation Therapy Committee Task Group No. 66," Med. Phys. 30, 2762-2792 (2003).
7. A. Gonzalez, I. Castro, and J. A. Martinez, "A procedure to determine the radiation isocenter size in a linear accelerator," Med. Phys. 31, 1489-1493 (2004).
8. I. J. Yeo et al., "EDR2 film dosimetry for IMRT verification using low-energy photon filters," Med. Phys. 31, 1960-1963 (2004).
9. S. Li, A. Rashid, S. He, and D. Djajaputra, "A new approach in dose measurement and error analysis for narrow photon beams (beamlets) shaped by different multileaf collimators using a small detector," Med. Phys. 31, 2020-2032 (2004).
10. J. Chang, C. H. Obcemea, J. Sillanpaa, J. Mechalakos, and C. Burman, "Use of EPID for leaf position accuracy QA of dynamic multi-leaf collimator (DMLC) treatment," Med. Phys. 31, 2091-2096 (2004).
11. G. V. Menon and R. S. Sloboda, "Compensator thickness verification using an a-Si, EPID," Med. Phys. 31, 2300-2312 (2004).
12. E. C. Ford and W. R. Lutz, "A block design for split-field tests of accelerator alignment," Med. Phys. 31, 2331-2334 (2004).
13. J. Beck and A. Berndt, "An algorithm for independent verification of, Gamma, Knife treatment plans," Med. Phys. 31, 2780-2784 (2004).
14. A. M. Stell, J. G. Li, O. A. Zeidan, and J. F. Dempsey, "An extensive log-file analysis of step-and-shoot intensity modulated radiation therapy segment delivery errors," Med. Phys. 31, 1593-1602 (2004).
15. F. Arakia, N. Moribe, T. Shimonobou, and Y. Yamashita, "Dosimetric properties of radiophotoluminescent glass rod detector in high-energy photon beams from a linear accelerator and cyber-knife," Med. Phys. 31, 1980-1986 (2004).
16. S. L. Mahan, D. J. Chase, and C. R. Ramsey, "Technical note: Output and energy fluctuations of the tomotherapy Hi-Art helical tomotherapy system," Med. Phys. 31, 2119-2120 (2004).
17. R. Kohno, N. Kanematsu, T. Kanai, and K. Yusa, "Evaluation of a pencil beam algorithm for therapeutic carbon ion beam in presence of bolus," Med. Phys. 31, 2249-2253 (2004).
18. N. L. Childress and I. I. Rosen, "Effect of processing time delay on the dose response of Kodak EDR2 film," Med. Phys. 31, 2284-2288 (2004).
19. O. A. Zeidan, J. G. Li, D. A. Low, and J. F. Dempsey, "Comparison of small photon beams measured using radiochromic and silver-halide films in solid water phantoms," Med. Phys. 31, 2730-2737 (2004).
20. E. Health, J. Seuntjens, and D. Sheikh-Bagheri, "Dosimetric evaluation of the clinical implementation of the first commercial IMRT Monte Carlo treatment planning system at 6 MV," Med. Phys. 31, 2771-2779 (2004).
21. M. Stasi, B. Baiotto, G. Barboni, and G. Scielzo, "The behavior of several microionization chambers in small intensity modulated radiotherapy fields," Med. Phys. 31, 2792-2795 (2004).
22. N. P. Orton and W. A. Tome, "The impact of daily shifts on prostate IMRT dose distributions," Med. Phys. 31, 2845-2848 (2004).
23. P. Carrasco et al., "Comparison of dose calculation algorithms in phantoms with lung equivalent heterogeneities under conditions of lateral electronic disequilibrium," Med. Phys. 31, 2899-2898 (2004).
24. D. A. Low, W. B. Harms, S. Mutic, and J. A. Purdy, "A technique for the quantitative evaluation of dose distributions," Med. Phys. 25, 656-661 (1998).
25. N. L. Childress and I. I. Rosen, "The design and testing of novel clinical parameters for dose comparison," Int. J. Radiat. Oncol., Biol., Phys. 56, 1464-1479 (2003).
26. A. Van Esch, R. Bogaerts, G. J. Kutcher, and D. Huyskens, "Quality assurance in radiotherapy by identifying standards and monitoring treatment preparation," Radiother. Oncol. 56, 109-115 (2000).
27. L. Cozzi and A. Fogliata-Cozzi, "Quality assurance in radiation oncology. A study of feasibility and impact on action levels of an in vivo dosimetry program during breast cancer irradiation," Radiother. Oncol. 47, 29-36 (1998).
28. W. A. Shewhart, Economic Control of Quality of Manufactured Product (Van Nostrand, New York, 1931).
29. K. Holli, P Laippala, A. Ojala, and M. Pitkanen, "Quality control in health care: An experiment in radiotherapy planning for breast cancer patients after mastectomy," Int. J. Radiat. Oncol., Biol., Phys. 44, 827-833 (1999).
30. M. A. Pitkanen, K. A. Holli, A. T. Ojala, and P. Laippala, "Quality assurance in radiotherapy of breast cancer - Variability in planning target volume delineation," Acta Oncol. 40, 50-55 (2001).
31. P J. Keall and J. F. Williamson, "Clinical evidence that more precisely denned dose distributions will improve cancer survival and decrease morbidity (comment)," Med. Phys. 30, 1281-1282 (2003).
32. D. Thwaites, "Quality assurance into the next century," Radiother. Oncol. 54, vii-ix (2000).
33. D. J. Wheeler and D. S. Chambers, Understanding Statistical Process Control (SPC, Knoxville, 1992).
34. I. W. Burr, "The effect of non-normality on constants for X-bar and R charts," Industrial Quality Control 24, 563-568 (1967).
35. H. A. David, "Early sample measures of variability," Stat. Sci. 13, 368-377 (1998).
36. D. J. Wheeler, Normality and the Process Behavior Chart (SPC, Knoxville, 2000).