Implementation and verification of Virtual Wedge in a three-dimensional radiotherapy planning system

Medical Physics

Volumn 27, Issue 7, 2000, Pages 1635-1643

  Miften, Moyed ^a   Zhu, X Ron ^b   Takahashi, Kaz ^a   Lopez, Francisco ^b   Gillin, Michael T ^b  

^a FOCUS Development Group   (United States)

^b MEDICAL COLLEGE OF WISCONSIN   (United States)

Author keywords

Constraint checking; Dose calculation; Monitor units; Virtual Wedge

Indexed keywords

CONVOLUTION; RADIOTHERAPY;

CONSTRAINT CHECKING; CONVOLUTION/SUPERPOSITION; DOSE CALCULATION; MONITOR UNITS; OPERATIONAL CONSTRAINTS; RADIOTHERAPY PLANNING; RADIOTHERAPY TREATMENT PLANNING; VIRTUAL WEDGE;

VIRTUAL REALITY;

ALGORITHM; ARTICLE; BEAM THERAPY; COLLIMATOR; COMPUTER ASSISTED RADIOTHERAPY; COMPUTER MODEL; DOSIMETRY; LINEAR ACCELERATOR; PRIORITY JOURNAL; RADIATION DOSE DISTRIBUTION; RADIATION FIELD; TREATMENT PLANNING; VIRTUAL REALITY;

EID: 0033861907     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.599030     Document Type: Article

References (22)

1. J. van Santvoort, "Dosimetric evaluation of the Siemens Virtual Wedge," Phys. Med. Biol. 43, 2651-2663 (1998).
2. S. Rathee, C. B. Kowk, C. MacGillivray, and M. Mirzaei, "Commissioning, clinical implementation and quality assurance of Siemen's Virtual Wedge," Med. Dosim. 24, 145-153 (1999).
3. G. E. Desobry, T. J. Waldron, and I. J. Das, "Validation of a new virtual wedge model," Med. Phys. 25, 71-73 (1998).
4. P. McGhee, T. Chu, K. Leszczynski, and P. Dunscombe, "The Siemens Virtual Wedge," Med. Dosim. 22, 39-41 (1997).
5. D. D. Leavitt, M. Martin, J. H. Moeller, and W. L. Lee, "Dynamic wedge field techniques through computer-controlled motion and dose delivery," Med. Phys. 17, 87-91 (1990).
6. E. E. Klein, D. S. Low, A. S. Meigooni, and J. A. Purdy, "Dosimetry and clinical implementation of dynamic wedge," Int. J. Radiat. Oncol., Biol., Phys. 31, 583-592 (1995).
7. D. D. Leavitt, W. L. Lee, D. K. Gafney, J. H. Moeller, and J. H. O'Rear, "Dosimetric parameters of enhanced dynamic wedge for treatment planning and verification," Med. Dosim. 22, 177-183 (1997).
8. A. M. Bidmead, A. J. Garton, and P. J. Childs, "Beam data measurements for dynamic wedges on Varian 600C (6 MV) and 2100C (6 and 10 MV) linear accelerators," Phys. Med. Biol. 43, 277-290 (1995).
9. A. W. Beavis, S. J. Weston, and V. J. Whitton, "Implementation of the Varian EDW into a commercial RTP system," Phys. Med. Biol. 41, 1691-1704 (1996).
10. M. Miften, M. Wiesmeyer, A. Beavis, K. Takahashi, and S. Broad, "Implementation of Enhanced Dynamic Wedge in the FOCUS RTP system," Med. Dosim. 25, 81-86 (2000).
11. S. Papatheodorou, S. Zefkili, and J.-C. Rosenwald. "The 'equivalent wedge' implementation of the Varian Enhanced Dynamic Wedge (EDW) into a treatment planning system," Phys. Med. Biol. 44, 509-524 (1999).
12. P. Storchi, E. Woudstra, K. A. Johansson, and A. Samuelsson, "Calculation of absorbed dose distributions for dynamic wedges." Phys. Med. Biol. 43, 1497-1506 (1998).
13. L. Weber, A. Ahnesjö, P. Nilsson, M. Saxner, and T. Knoos, "Verification and implementation of dynamic wedge calculations in a treatment planning system based on a dose-to-energy-fluence formalism," Med. Phys. 23, 307-316 (1996).
14. E. E. Klein, R. Gerber, X. R. Zhu, F. Oehmke, and J. A. Purdy, "Multiple machine implementation of Enhanced Dynamic Wedges," Int. J. Radiat. Oncol., Biol., Phys. 40, 977-985 (1998).
15. J. P. Gibbons, "Calculation of enhanced dynamic wedge factors for symmetric and asymmetric photons fields," Med. Phys. 25, 1411-1418 (1998).
16. H. H. Liu, E. C. McCullough, and T. R. Mackie, "Calculating dose distributions and wedge factors for photon treatment fields with dynamic wedges based on a convolution/superposition method," Med. Phys. 25, 56-63 (1998).
17. J. R. Cunningham, P. N. Shirvastava, and J. M. Wilkinson, "Program IRREG-calculation of dose from irregularly shaped radiation beams," Comput. Programs Biomed. 2, 192 (1972).
18. M. Miften, M. Wiesmeyer, S. Monthofer, and K. Krippner, "Implementation of FFT convolution and multigrid superposition models in the FOCUS RTP system," Phys. Med. Biol. 45, 817-833 (2000).
19. H. H. Liu, E. P. Lief, and E. C. McCullough, "Measuring dose distributions for enhanced dynamic wedges using a multichamber detector array," Med. Phys. 24, 1515-1519 (1997).
20. T. H. Steinberg, private communication (2000).
21. A. Ahnesjö, P. Andreo, and A. Brahme, "Calculation and application of point spread functions for treatment planning with high energy photon beams," Acta Oncol. 26, 49-55 (1987).
22. X. R. Zhu, M. T. Gillin, F. Lopez, D. F. Grimm, and J. J. Rownd, "Comparison of dosimetric characteristics of Siemens Virtual Wedge and physical wedges," Med. Phys. (1999) (to be published).