Lateral electron transport in FFT photon dose calculations

Medical Physics

Volumn 24, Issue 12, 1997, Pages 1992-2000

  Wong, Eugene ^a   Van Dyk, Jake ^a   Zhu, Yunping ^b  

^a LONDON REGIONAL CANCER PROGRAM   (Canada)

^b ST JUDE CHILDREN S RESEARCH HOSPITAL   (United States)

Author keywords

Dose calculation; FFT convolution; Lateral electronic disequilibrium; X ray

Indexed keywords

ELECTRON TRANSPORT PROPERTIES; PHOTONS; X RAYS;

COMPUTATIONAL TIME; DOSE CALCULATION; DOSE DISTRIBUTIONS; EFFECTIVE DENSITY; ELECTRON TRANSPORT; FFT CONVOLUTION; INHOMOGENEOUS MEDIA; LATERAL ELECTRONIC DISEQUILIBRIUM;

FAST FOURIER TRANSFORMS;

ARTICLE; DOSE CALCULATION; ELECTRON TRANSPORT; FOURIER TRANSFORMATION; MATHEMATICAL ANALYSIS; PHOTON; PRIORITY JOURNAL; RADIATION DOSE; RADIATION DOSE DISTRIBUTION; RADIATION ENERGY; SYSTEM ANALYSIS; THEORY;

EID: 0031466299     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.598120     Document Type: Article

References (22)

1. Y. Zhu and A. Boyer, "X-ray dose computations in heterogeneous media using 3-dimensional FFT convolution," Phys. Med. Biol. 35, 351-368 (1990).
2. Y. Zhu and J. Van Dyk, "Accuracy requirements of the primary x-ray spectrum in dose calculations using FKT convolution techniques," Med. Phys. 22, 421-426 (1995).
3. J. Sun and Y. Zhu, "A study of the dosimetric penumbra due to multileaf collimation on a medical linear accelerator," Int. J Radiat. Oncol., Biol., Phys. 32, 1409-1417 (1995)
4. O. Z. Ostapiak, Y. Zhu, and J. Van Dyk, "Refinements of the finite-size pencil beam model of three-dimensional photon dose calculation," Med. Phys. 24, 743-750 (1997).
5. J. J. Battista and M. B. Sharpe, "True three-dimensional dose computations for megavoltage X-ray therapy: A role for the superposition principle," Aust. Physic. Eng. Sci. Med. 15, 159-178 (1992).
6. A. Ahnesjö, "Collapsed cone convolution of radiation energy for photon dose calculation." Med. Phys. 16, 577-591 (1989).
7. P. Bloch, "A unified electron/photon dosimetry approach," Phys. Med. Biol. 33, 373-379 (1988).
8. M. D. Altschuler, P Bloch, El. Buhle, Jr., and S. Ayyalasomayajula, "3D dose calculations for electron and photon beams," Phys. Med. Biol. 33, 391-441 (1992).
9. N. Papanikolaou and T. R. Mackie, "Extension of the convolution/ superposition based algorithms to include atomic number effects," Med. Phys. 22, 977 (1995).
10. C. X. Yu, T R Mackie, and J. W. Wong, "Photon dose calculation incorporating explicit electron transport," Med. Phys. 22, 1157-1165 (1995).
11. J. Van Dyk, R. Barnett, J. Cygler, and P. Shragge, "Commissioning and quality assurance of treatment planning computers," Int J. Radiat. Oncol., Biol., Phys. 26, 261-273 (1993).
12. E. Wong, Y. Zhu, and J. Van Dyk, "Theoretical developments on FFT convolution dose calculations in inhomogeneous media," Med. Phys. 23, 1511-1521 (1996).
13. J. E. O'Connor, "The density scaling theorem applied to lateral electronic equilibrium," Med. Phys. 11, 678-680 (1984).
14. A. Ahnesjö, P. Andreo, and A. Brahme, "Calculation and application of point spread functions for treatment planning with high energy photon beams," Acta Oncologica 26, 49-56 (1987).
15. M. R. Sontag, J. J. Battista, M. J. Bronskill, and J. R Cunningham, "Implications of computed tomography for inhomogeneity corrections in photon beam dose calculations," Radiology 124, 143-149 (1977).
16. M. R. Sontag and J. R. Cunningham, "The equivalent tissue-air-ratio method for making absorbed dose calculations in a heterogeneous medium," Radiology 129, 787-794 (1978).
17. M. K. Woo, J. R. Cunningham, and J. J. Jezioranski, "Extending the concept of primary and scatter separation to the condition of electronic disequilibrium," Med. Phys. 17, 588-595 (1990).
18. C. X. Yu and J. W. Wong, "Implementation of the ETAR method for 3D inhomogeneity correction using H-T,'' Med. Phys. 20, 627-632 (1993).
19. J. R. Cunningham and J. J. Battista, "Calculation of dose distributions for x-ray therapy," Physics in Canada, July-September, 1995.
20. R. K. Rice, B. J. Mijnheer, and L. M. Chin, "Benchmark measurements for lung dose corrections for x-ray beams," Int. J. Radiat. Oncol., Biol., Phys. 15, 399-409 (1988)
21. A. L. Boyer, Y. Zhu, L. Wang, and P. Francois, "Fast Fourier transform convolutions of x-ray isodose distributions in homogeneous media," Med. Phys. 16, 248-253 (1989)
22. M. K. Woo and J. R. Cunningham, "The validity of the density scaling method in primary electron transport for photon and electron beams," Med. Phys. 17, 187-194 (1990).