Effect of beam number on organ-at-risk sparing in dynamic multileaf collimator delivery of intensity modulated radiation therapy

Medical Physics

Volumn 34, Issue 10, 2007, Pages 3752-3759

  Popple, Richard A ^a,b   Fiveash, John B ^a   Brezovich, Ivan A ^a  

^a The University of Alabama at Birmingham   (United States)

^b NONE   (United States)

Author keywords

Intensity modulation; MLC; Treatment planning

Indexed keywords

BIOMEDICAL ENGINEERING; RADIOTHERAPY; STATISTICS; TRANSMISSIONS;

CLINICAL SITUATIONS; CRITICAL STRUCTURES; DYNAMIC MULTILEAF COLLIMATORS; INTENSITY MODULATED RADIATION THERAPY; INTENSITY MODULATIONS; MULTILEAF COLLIMATORS; PLANNING TARGET VOLUMES; TREATMENT PLANNING;

TISSUE;

ACCURACY; ARTICLE; CANCER RADIOTHERAPY; COLLIMATOR; GEOMETRY; HEAD AND NECK CANCER; HUMAN; INTENSITY MODULATED RADIATION THERAPY; METASTASIS; PRESCRIPTION; PRIORITY JOURNAL; RADIATION BEAM; RADIATION DOSE; RISK ASSESSMENT; SPINAL CORD; SPINAL CORD METASTASIS; TREATMENT PLANNING;

PERU TOMATO MOSAIC VIRUS;

EID: 34748814864     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.2779862     Document Type: Article

References (29)

1. J. B. Fiveash, H. Murshed, J. Duan, M. Hyatt, J. Caranto, J. A. Bonner, and R. A. Popple, " Effect of multileaf collimator leaf width on physical dose distributions in the treatment of CNS and head and neck neoplasms with intensity modulated radiation therapy., " Med. Phys. 29, 1116-1119 (2002).
2. A. Leal, F. Sanchez-Doblado, R. Arrans, R. Capote, J. I. Lagares, E. C. Pavon, and J. Rosello, " MLC leaf width impact on the clinical dose distribution: A Monte Carlo approach., " Int. J. Radiat. Oncol., Biol., Phys. 59, 1548-1559 (2004).
3. S. Nill, T. Tucking, M. W. Munter, and U. Oelfke, " Intensity modulated radiation therapy with multileaf collimators of different leaf widths: A comparison of achievable dose distributions., " Radiother. Oncol. 75, 106-111 (2005).
4. L. Wang, B. Movsas, R. Jacob, E. Fourkal, L. Chen, R. Price, S. Feigenberg, A. Konski, A. Pollack, and C. Ma, " Stereotactic IMRT for prostate cancer: Dosimetric impact of multileaf collimator leaf width in the treatment of prostate cancer with IMRT., " J. Appl. Clin. Med. Phys. 5, 29-41 (2004).
5. T. Bortfeld, U. Oelfke, and S. Nill, " What is the optimum leaf width of a multileaf collimator?, " Med. Phys. 27, 2494-2502 (2000).
6. C. X. Yu, " Design considerations for the sides of multileaf collimator leaves., " Phys. Med. Biol. 43, 1335-1342 (1998).
7. 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).
8. J. O. Kim, J. V. Siebers, P. J. Keall, M. R. Arnfield, and R. Mohan, " A Monte Carlo study of radiation transport through multileaf collimators., " Med. Phys. 28, 2497-2506 (2001).
9. P. S. Cho and R. J. Marks, " Hardware-sensitive optimization for intensity modulated radiotherapy., " Phys. Med. Biol. 45, 429-440 (2000).
10. J. Seco, C. H. Clark, P. M. Evans, and S. Webb, " A quantitative study of IMRT delivery effects in commercial planning systems for the case of oesophagus and prostate tumours., " Br. J. Radiol. 79, 401-408 (2006).
11. J. V. Siebers, M. Lauterbach, P. J. Keall, and R. Mohan, " Incorporating multi-leaf collimator leaf sequencing into iterative IMRT optimization., " Med. Phys. 29, 952-959 (2002).
12. M. J. Williams and P. Metcalfe, " Verification of a rounded leaf-end MLC model used in a radiotherapy treatment planning system., " Phys. Med. Biol. 51, N65-N78 (2006).
13. Y. Yang and L. Xing, " Incorporating leaf transmission and head scatter corrections into step-and-shoot leaf sequences for IMRT., " Int. J. Radiat. Oncol., Biol., Phys. 55, 1121-1134 (2003).
14. R. Mohan, M. Arnfield, S. Tong, Q. Wu, and J. Siebers, " The impact of fluctuations in intensity patterns on the number of monitor units and the quality and accuracy of intensity modulated radiotherapy., " Med. Phys. 27, 1226-1237 (2000).
15. S. Soderstrom and A. Brahme, " Which is the most suitable number of photon beam portals in coplanar radiation therapy?, " Int. J. Radiat. Oncol., Biol., Phys. 33, 151-159 (1995).
16. J. Stein, R. Mohan, X. H. Wang, T. Bortfeld, Q. Wu, K. Preiser, C. C. Ling, and W. Schlegel, " Number and orientations of beams in intensity-modulated radiation treatments., " Med. Phys. 24, 149-160 (1997).
17. S. A. Spencer, J. Harris, R. H. Wheeler, M. Machtay, C. Schultz, W. Spanos, M. Rotman, and R. Meredith, " RTOG 96-10: Reirradiation with concurrent hydroxyurea and 5-fluorouracil in patients with squamous cell cancer of the head and neck., " Int. J. Radiat. Oncol., Biol., Phys. 51, 1299-1304 (2001).
18. W. Ulmer, J. Pyyry, and W. Kaissl, " A 3D photon superposition/convolution algorithm and its foundation on results of Monte Carlo calculations., " Phys. Med. Biol. 50, 1767-1790 (2005).
19. " Radiotherapy Equipment-Coordinates, movements and scales., " International Electrotechnical Commission IEC- 61 217 (1996).
20. T. R. Mackie, T. Holmes, S. Swerdloff, P. Reckwerdt, J. O. Deasy, J. Yang, B. Paliwal, and T. Kinsella, " Tomotherapy: A new concept for the delivery of dynamic conformal radiotherapy., " Med. Phys. 20, 1709-1719 (1993).
21. T. R. Mackie, J. Balog, K. Ruchala, D. Shepard, S. Aldridge, E. Fitchard, P. Reckwerdt, G. Olivera, T. McNutt, and M. Mehta, " Tomotherapy., " Semin. Radiat. Oncol. 9, 108-117 (1999).
22. J. S. Welsh, R. R. Patel, M. A. Ritter, P. M. Harari, T. R. Mackie, and M. P. Mehta, " Helical tomotherapy: An innovative technology and approach to radiation therapy., " Technol. Cancer Res. Treat. 1, 311-316 (2002).
23. R. S. Ahmed, R. Ove, J. Duan, R. Popple, and G. B. Cobb, " Intensity-modulated radiotherapy (IMRT) for carcinoma of the maxillary sinus: A comparison of IMRT planning systems., " Med. Dosim. 31, 224-232 (2006).
24. C. Fiorino, I. Dell'Oca, A. Pierelli, S. Broggi, E. De Martin, N. Di Muzio, B. Longobardi, F. Fazio, and R. Calandrino, " Significant improvement in normal tissue sparing and target coverage for head and neck cancer by means of helical tomotherapy., " Radiother. Oncol. 78, 276-282 (2006).
25. K. Sheng, J. A. Molloy, and P. W. Read, " Intensity-modulated radiation therapy (IMRT) dosimetry of the head and neck: A comparison of treatment plans using linear accelerator-based IMRT and helical tomotherapy., " Int. J. Radiat. Oncol., Biol., Phys. 65, 917-923 (2006).
26. E. T. Soisson, W. A. Tome, G. M. Richards, and M. P. Mehta, " Comparison of linac based fractionated stereotactic radiotherapy and tomotherapy treatment plans for skull-base tumors., " Radiother. Oncol. 78, 313-321 (2006).
27. M. van Vulpen, C. Field, C. P. Raaijmakers, M. B. Parliament, C. H. Terhaard, M. A. MacKenzie, R. Scrimger, J. J. Lagendijk, and B. G. Fallone, " Comparing step-and-shoot IMRT with dynamic helical tomotherapy IMRT plans for head-and-neck cancer., " Int. J. Radiat. Oncol., Biol., Phys. 62, 1535-1539 (2005).
28. R. Popple, I. Brezovich, J. Fiveash, J. Duan, S. Shen, and X. Wu, " Incorporation of modulation range constraints into a gradient search algorithm for IMRT optimization., " Med. Phys. 33, 2202 (2006).
29. D. M. Shepard, M. A. Earl, X. A. Li, S. Naqvi, and C. Yu, " Direct aperture optimization: A turnkey solution for step-and-shoot IMRT., " Med. Phys. 29, 1007-1018 (2002).