Smoothing intensity-modulated treatment delivery under hardware constraints

Medical Physics

Volumn 29, Issue 12, 2002, Pages 2937-2945

  Ma, Lijun ^a  

^a UNIVERSITY OF MARYLAND SCHOOL OF MEDICINE   (United States)

Author keywords

Intensity modulation; Leaf sequencing; Multileaf collimator; Radiotherapy; Treatment planning

Indexed keywords

BIOMEDICAL ENGINEERING; MATRIX ALGEBRA; RADIOTHERAPY;

DOSE-VOLUME HISTOGRAMS; HARDWARE CONSTRAINTS; INTENSITY DISTRIBUTION; INTENSITY MODULATIONS; INTENSITY-MODULATED; LEAF SEQUENCING; MULTILEAF COLLIMATORS; TREATMENT PLANNING;

UROLOGY;

ARTICLE; CANCER RADIOTHERAPY; COLLIMATOR; COMPUTER; ESOPHAGUS CANCER; HEAD AND NECK CANCER; HUMAN; INTENSITY MODULATED RADIATION THERAPY; LUNG CANCER; MULTILEAF COLLIMATOR; PRIORITY JOURNAL; PROSTATE CANCER; TREATMENT PLANNING;

EID: 0036912841     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.1521121     Document Type: Article

References (16)

1. T. Bortfeld, A. L. Boyer, W. Schlegel, D. L. Kahler, and T. J. Waldron, "Realization and verification of three-dimensional conformal radiotherapy with modulated fields," Int. J. Radiat. Oncol., Biol., Phys. 30(4), 899-908 (1994).
2. P. Xia and L. J. Verhey, "Multileaf collimator leaf sequencing algorithm for intensity modulated beams with multiple static segments," Med. Phys. 25, 1424-1434 (1998).
3. W. Que, "Comparison of algorithms for multileaf collimator field segmentation," Med. Phys. 26, 2390-2396 (1999).
4. J. P. van Santvoort and B. J. Heijmen, "Dynamic multileaf collimation without 'tongue-and-groove' underdosage effects," Phys. Med. Biol. 41(10), 2091-2105 (1996).
5. S. Webb, T. Bortfeld, J. Stein, and D. Convery, "The effect of stair-step leaf transmission on the tongue-and-groove problem in dynamic radiotherapy with a multileaf collimator," Phys. Med. Biol. 42(3), 595-602 (1997).
6. M. Alber and F. Nusslin, "Optimization of intensity modulated radiotherapy under constraints for static and dynamic MLC delivery," Phys. Med. Biol. 46(12), 3229-3239 (2001).
7. P. S. Cho, R. J. Marks II, P. Convery, and K. D. Murray, "Hardware-sensitive optimization for intensity modulated radiotherapy," Phys. Med. Biol. 45(2), 429-440 (2000).
8. J. Dai and Y. Zhu, "Minimizing the number of segments in a delivery sequence for intensity-modulated radiation therapy with a multileaf collimator," Med. Phys. 28, 2113-2120 (2001).
9. M. L. Dirkx, B. J. Heijmen, and J. P. van Santvoort, "Leaf trajectory calculation for dynamic multileaf collimation to realize optimized fluence profiles," Phys. Med. Biol. 43(5), 1171-1184 (1998).
10. K. Grosser, A. Kessen, and T. Bortfeld, presented at the The 13th International Conference on the Use of Computers in Radiation Therapy, Heidelberg, Germany, 2000 (unpublished).
11. L. Ma, A. L. Boyer, C. M. Ma, and L. Xing, "Synchronizing dynamic multileaf collimators for producing two-dimensional intensity-modulated fields with minimum beam delivery time," Int. J. Radiat. Oncol., Biol., Phys. 44(5), 1147-1154 (1999).
12. R. A. Siochi, "Minimizing static intensity modulation delivery time using an intensity solid paradigm," Int. J. Radiat. Oncol., Biol., Phys. 43(3), 671-680 (1999).
13. S. V. Spirou, N. Fournier-Bidoz, J. Yang, C. S. Chui, and C. C. Ling, "Smoothing intensity-modulated beam profiles to improve the efficiency of delivery," Med. Phys. 28, 2105-2112 (2001).
14. Y. Wu, D. Yan, M. B. Sharpe, B. Miller, and J. W. Wong, "Implementing multiple static field delivery for intensity modulated beams," Med. Phys. 28, 2188-2197 (2001).
15. M. A. Earl and L. Ma, "Depth dose enhancement of electron beams subject to external uniform longitudinal magentic field: A Monte Carlo study," Med. Phys. 29, 484-491 (2002).
16. L. Ma, A. L. Boyer, L. Xing, and C. M. Ma, "An optimized leaf-setting algorithm for beam intensity modulation using dynamic multileaf collimators," Phys. Med. Biol. 43(6), 1629-1643 (1998).