Verification of step-and-shoot IMRT delivery using a fast video-based electronic portal imaging device

Medical Physics

Volumn 31, Issue 3, 2004, Pages 463-476

  Zeidan, Omar A ^a,b   Li, Jonathan G ^a   Ranade, Manisha ^a   Stell, Anthony M ^a   Dempsey, James F ^a  

^a UNIVERSITY OF FLORIDA   (United States)

^b JOHNS HOPKINS UNIVERSITY   (United States)

Author keywords

CCD camera; EPID; Fluence; IMRT; IMRT treatment plan verification; MLC

Indexed keywords

BIOMEDICAL ENGINEERING; GADOLINIUM COMPOUNDS; HIGH SPEED CAMERAS; IMAGE RESOLUTION; IMAGE SEGMENTATION; LINEAR ACCELERATORS; PIXELS; RADIOTHERAPY; TERBIUM COMPOUNDS; VIDEO RECORDING;

ELECTRONIC PORTAL IMAGING DEVICES; EPID; FLUENCES; HIGH SPEED IMAGING; IMRT; INTENSITY-MODULATED RADIATION THERAPY; MULTILEAF COLLIMATORS; TREATMENT PLANS;

CCD CAMERAS;

GADOLINIUM; TERBIUM;

ARTICLE; ARTIFACT; CAMERA; COLLIMATOR; DEVICE; ELECTRONIC PORTAL IMAGING DEVICE; INTENSITY MODULATED RADIATION THERAPY; MULTILEAF COLLIMATOR; PRIORITY JOURNAL; TREATMENT PLANNING; VALIDATION PROCESS; VIDEORECORDING; X RAY;

MUS;

EID: 1642377027     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.1644518     Document Type: Article

References (29)

1. J. H. Kung and G. T. Y. Chen, "Intensity modulated radiotherapy dose delivery error from radiation field offset inaccuracy," Med. Phys. 27, 1617-1622 (2000).
2. P. Xia, C. F. Chuang, and L. J. Verhey, "Communication and sampling rate limitations in IMRT delivery with a dynamic multileaf collimator system," Med. Phys. 29, 412-423 (2002).
3. D. W. Litzenberg, J. M. Moran, and B. A. Fraass, "Verification of dynamic and segmental IMRT delivery by dynamic log file analysis," J. Appl. Clin. Med. Phys. 3, 63-72 (2002).
4. G. A. Ezzell and S. Chungbin, "The overshoot phenomena in step-and-shoot IMRT delivery," J. Appl. Clin. Med. Phys. 2, 138-148 (2001).
5. C. R. Ramzi, K. M. Spencer, R. Alhakeem, and A. L. Oliver, "Leaf position error during conformal dynamic arc and intensity modulated arc treatments," Med. Phys. 28, 67-72 (2001).
6. M. K. Woo, A. W. Lightstone, G. Shan, L. Kumaraswamy, and Y. Li, "Automatic verification of 'step-and-shoot' IMRT field segments using portal imaging," Med. Phys. 30, 348-351 (2003).
7. T. LoSasso, C. S. Chui, and C. C. Ling, "Comprehensive quality assurance for the delivery of intensity-modulated radiotherapy with a multileaf collimator," Med. Phys. 28, 2209-2219 (2001).
8. A. J. Curtin-Savard and E. B. Podgorsak, "Verification of segmented beam delivery using a commercial electronic portal imaging device," Med. Phys. 26, 737-742 (1999).
9. L. J. Ma, P. B. Geis, and A. L. Boyer, "Quality assurance for dynamic multileaf collimator modulated fields using a fast beam imaging system," Med. Phys. 24, 1213-1220 (1997).
10. T. LoSasso, C. S. Chui, and C. C. Ling, "Physical and dosimetric aspects of a multileaf collimation system used in the dynamic mode for implementing intensity modulated radiotherapy," Med. Phys. 25, 1919-1927 (1998).
11. H. V. James, S. Atherton, G. J. Budgell, M. C. Kirby, and P. C. Williams, "Verification of dynamic multileaf collimation using an electronic portal imaging device," Phys. Med. Biol. 45, 495-509 (2000).
12. M. Partridge, P. M. Evans, M. van Herk, L. S. Ploeger, G. J. Budgell, and H. V. James, "Leaf position verification during dynamic beam delivery: A comparison of three applications using electronic portal imaging," Med. Phys. 27, 1601-1609 (2000).
13. M. Partridge, J. R. N. Symonds-Taylor, and P. M. Evans, "IMRT verification with a camera-based electronic portal imaging system," Phys. Med. Biol. 45, N183-N196 (2000).
14. K. L. Pasma, M. L. P. Dirkx, M. Kroonwijk, A. G. Visser, and B. J. M. Heijmen, "Dosimetric verification of intensity modulated beams produced with dynamic multileaf collimation using an electronic portal imaging device," Med. Phys. 26, 2373-2378 (1999).
15. M. Partridge, P. M. Evans, A. Mosleh-Shirazi, and D. Convery, "Independent verification using portal imaging of intensity-modulated beam delivery by the dynamic MLC technique," Med. Phys. 25, 1872-1879 (1998).
16. K. L. Pasma, M. Kroowijk, J. C. J. de Boer, A. G. Visser, and B. J. M. Heijmen, "Accurate portal dose measurement with a fluoroscopic electronic portal imaging device (EPID) for open and wedged beams and dynamic multileaf collimation," Phys. Med. Biol. 43, 2047-2060 (1998).
17. M. A. Mosleh-Shirazi, P. M. Evans, W. Swindell, J. R. N. Symonds-Taylor, S. Webb, and M. Partridge, "Rapid portal imaging with a high-efficiency, large field-of-view detector," Med. Phys. 25, 2333-2346 (1998).
18. R. Rajapakshe and S. Shalev, "Output stability of a linear accelerator during the first three seconds," Med. Phys. 23, 517-519 (1996).
19. L. S. Ploeger, M. H. P. Smitsmans, K. G. A. Gilhuijs, and M. van Herk, "Accurate measurement of the dynamic response of a scanning electronic portal imaging device," Med. Phys. 28, 310-316 (2001).
20. A. G. Glendinning, S. G. Hunt, and D. E. Bonnett, "Measurement of the response of Gd202S:Tb phosphor to 6 MV x-rays," Phys. Med. Biol. 46, 517-530 (2001).
21. V. G. M. Althof, J. C. J. de Boer, H. Huizenga, J. C. Stroom, A. G. Visser, and B. N. Swanenburg, "Physical characteristics of a commercial electronic portal imaging device," Med. Phys. 23, 1845-1855 (1996).
22. J. G. Li, J. F. Dempsey, L. Ding, C. Liu, and J. R. Palta, "Validation of dynamic MLC-controller log files using a two-dimensional diode array," Med. Phys. 30, 799-805 (2002).
23. S. N. Boon, P. van Luijk, and M. Schippers, "Fast 2D phantom dosimetry for scanning proton beams," Med. Phys. 25, 464-475 (1998).
24. C. Kausch, B. Schreiber, F. Kreuder, R. Schmidt, and O. Dössel, "Monte Carlo simulations of the imaging performance of metal plate/ phosphor screens used in radiotherapy," Med. Phys. 26, 2113-2124 (1999).
25. D. W. Litzenberg, J. M. Moran, and B. A. Fraass, "Incorporation of realistic delivery limitations into dynamic MLC treatment delivery," Med. Phys. 29, 810-820 (2002).
26. M. Partridge, P. M. Evans, and M. A. Mosleh-Shirazi, "Linear accelerator output variations and their consequences for megavoltage imaging," Med. Phys. 25, 1443-1452 (1998).
27. M. Partridge, P. M. Evans, and J. R. N. Symonds-Tayler, "Optical scattering in camera-based electronic portal imaging," Phys. Med. Biol. 44, 2381-2396 (1999).
28. P. Munro, D. C. Bouius, J. Moseley, L. Martin, Y. Zhang, and D. A. Jaffray, "Glare errors in transit dosimetry," Med. Phys. 25, 1097 (1998).
29. M. L. Dirkx, B. J. Heijmen, and J. P. C. van Santvoort, "Leaf trajectory calculation for dynamic multileaf collimation to realize optimized fluence profiles," Phys. Med. Biol. 43, 1171-1184 (1998).