The use of EPID-measured leaf sequence files for IMRT dose reconstruction in adaptive radiation therapy

Medical Physics

Volumn 35, Issue 11, 2008, Pages 5019-5029

  Lee, Louis ^a   Mao, Weihua ^a   Xing, Lei ^a  

^a STANFORD UNIVERSITY SCHOOL OF MEDICINE   (United States)

Author keywords

Dose reconstruction; EPID; IMRT; Leaf sequence file

Indexed keywords

BIOMEDICAL ENGINEERING; CALIBRATION; RADIOTHERAPY;

ADAPTIVE RADIATION THERAPIES; DOSE RECONSTRUCTION; EPID; IMRT; LEAF SEQUENCE FILE; MULTILEAF COLLIMATORS; RADIATION TREATMENTS; SILICON ELECTRONICS;

AMORPHOUS SILICON;

ARTICLE; CANCER RADIOTHERAPY; COLLIMATOR; DOSIMETRY; IMAGE RECONSTRUCTION; INTENSITY MODULATED RADIATION THERAPY; MULTILEAF COLLIMATOR; PELVIS; PHANTOM; PRIORITY JOURNAL; PROSTATE CANCER; RADIATION DOSE;

EID: 54949088329     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.2990782     Document Type: Article

References (35)

1. S. Webb, " Adapting IMRT delivery fraction-by-fraction to cater for variable intrafraction motion.," Phys. Med. Biol. 53, 1-21 (2008).
2. A. de la Zerda, B. Armbruster, and L. Xing, " Formulating adaptive radiation therapy (ART) treatment planning into a closed-loop control framework.," Phys. Med. Biol. 52, 4137-4153 (2007).
3. D. Yan, F. Vicini, J. Wong, and A. Martinez, " Adaptive radiation therapy.," Phys. Med. Biol. 42, 123-132 (1997).
4. D. Yan, J. Wong, F. Vicini, J. Michalski, C. Pan, A. Frazier, E. Horwitz, and A. Martinez, " Adaptive modification of treatment planning to minimize the deleterious effects of treatment setup errors.," Int. J. Radiat. Oncol., Biol., Phys. 38, 197-206 (1997).
5. S. Yoo and F. F. Yin, " Dosimetric feasibility of cone-beam CT-based treatment planning compared to CT-based treatment planning.," Int. J. Radiat. Oncol., Biol., Phys. 66, 1553-1561 (2006).
6. Y. Yang, E. Schreibmann, T. Li, C. Wang, and L. Xing, " Evaluation of on-board kV cone beam CT (CBCT)-based dose calculation.," Phys. Med. Biol. 52, 685-705 (2007).
7. K. M. Langen, S. L. Meeks, D. O. Poole, T. H. Wagner, T. R. Willoughby, P. A. Kupelian, K. J. Ruchala, J. Haimerl, and G. H. Olivera, " The use of megavoltage CT (MVCT) images for dose recomputations.," Phys. Med. Biol. 50, 4259-4276 (2005).
8. 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).
9. R. D. Wiersma and L. Xing, " Examination of geometric and dosimetric accuracies of gated step-and-shoot intensity modulated radiation therapy.," Med. Phys. 34, 3962-3970 (2007).
10. D. W. Litzenberg, S. W. Hadley, N. Tyagi, J. M. Balter, R. K. Ten Haken, and I. J. Chetty, " Synchronized dynamic dose reconstruction.," Med. Phys. 34, 91-102 (2007).
11. L. Lee, Q. T. Le, and L. Xing, " Retrospective IMRT dose reconstruction based on cone-beam CT and MLC log-file.," Int. J. Radiat. Oncol., Biol., Phys. 70, 634-644 (2008).
12. 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 (2003).
13. 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).
14. L. Parent, J. Seco, P. M. Evans, D. R. Dance, and A. Fielding, " Evaluation of two methods of predicting MLC leaf positions using EPID measurements.," Med. Phys. 33, 3174-3182 (2006).
15. G. V. Menon and R. S. Sloboda, " Quality assurance measurements of a-Si EPID performance.," Med. Dosim. 29, 11-17 (2004).
16. B. M. McCurdy, K. Luchka, and S. Pistorius, " Dosimetric investigation and portal dose image prediction using an amorphous silicon electronic portal imaging device.," Med. Phys. 28, 911-924 (2001).
17. G. J. Budgell, Q. Zhang, R. J. Trouncer, and R. I. Mackay, " Improving IMRT quality control efficiency using an amorphous silicon electronic portal imager.," Med. Phys. 32, 3267-3278 (2005).
18. 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).
19. S. J. Baker, G. J. Budgell, and R. I. MacKay, " Use of an amorphous silicon electronic portal imaging device for multileaf collimator quality control and calibration.," Phys. Med. Biol. 50, 1377-1392 (2005).
20. M. F. Clarke and G. J. Budgell, " Use of an amorphous silicon EPID for measuring MLC calibration at varying gantry angle.," Phys. Med. Biol. 53, 473-485 (2008).
21. J. J. Sonke, L. S. Ploeger, B. Brand, M. H. Smitsmans, and M. van Herk, " Leaf trajectory verification during dynamic intensity modulated radiotherapy using an amorphous silicon flat panel imager.," Med. Phys. 31, 389-395 (2004).
22. M. N. Graves, A. V. Thompson, M. K. Martel, D. L. McShan, and B. A. Fraass, " Calibration and quality assurance for rounded leaf-end MLC systems.," Med. Phys. 28, 2227-2233 (2001).
23. Y. Yang and L. Xing, " Quantitative measurement of MLC leaf displacements using an electronic portal image device.," Phys. Med. Biol. 49, 1521-1533 (2004).
24. W. Mao, L. Lee, and L. Xing, " Development of a QA phantom and automated analysis tool for geometric quality assurance of on-board MV and kV x-ray imaging systems.," Med. Phys. 35 (4), 1497-1506 (2008).
25. 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).
26. J. Bijhold, K. G. Gilhuijs, M. van Herk, and H. Meertens, " Radiation field edge detection in portal images.," Phys. Med. Biol. 36, 1705-1710 (1991).
27. ICRU, Report No. 24, 1976 (unpublished).
28. S. C. Vieira, M. L. Dirkx, K. L. Pasma, and B. J. Heijmen, " Fast and accurate leaf verification for dynamic multileaf collimation using an electronic portal imaging device.," Med. Phys. 29, 2034-2040 (2002).
29. 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).
30. 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).
31. K. Eilertsen, " Automatic detection of single MLC leaf positions with corrections for penumbral effects and portal imager dose rate characteristics.," Phys. Med. Biol. 42, 313-334 (1997).
32. L. N. McDermott, M. Wendling, J. Nijkamp, A. Mans, J. J. Sonke, B. J. Mijnheer, and M. van Herk, " 3D in vivo dose verification of entire hypo-fractionated IMRT treatments using an EPID and cone-beam CT.," Radiother. Oncol. 86, 35-42 (2008).
33. W. J. van Elmpt, S. M. Nijsten, A. L. Dekker, B. J. Mijnheer, and P. Lambin, " Treatment verification in the presence of inhomogeneities using EPID-based three-dimensional dose reconstruction.," Med. Phys. 34, 2816-2826 (2007).
34. L. N. McDermott, S. M. Nijsten, J. J. Sonke, M. Partridge, M. van Herk, and B. J. Mijnheer, " Comparison of ghosting effects for three commercial a-Si EPIDs.," Med. Phys. 33, 2448-2451 (2006).
35. S. M. Nijsten, W. J. van Elmpt, M. Jacobs, B. J. Mijnheer, A. L. Dekker, P. Lambin, and A. W. Minken, " A global calibration model for a-Si EPIDs used for transit dosimetry.," Med. Phys. 34, 3872-3884 (2007).