Patient-specific IMRT verification using independent fluence-based dose calculation software: Experimental benchmarking and initial clinical experience

Physics in Medicine and Biology

Volumn 52, Issue 16, 2007, Pages 4981-4992

  Georg, Dietmar ^a   Stock, Markus ^a   Kroupa, Bernhard ^a   Olofsson, Jörgen ^b   Nyholm, Tufve ^b   Ahnesjö, Anders ^b,c,d   Karlsson, Mikael ^b  

^a MEDICAL UNIVERSITY OF VIENNA   (Austria)

^b UMEÅ UNIVERSITY   (Sweden)

^c UPPSALA UNIVERSITY   (Sweden)

^d Elekta AB   (Sweden)

Author keywords

[No Author keywords available]

Indexed keywords

ALGORITHMS; BENCHMARKING; COMPUTER SOFTWARE; DOSIMETRY; QUALITY ASSURANCE;

DOSE CALCULATION; INTENSITY-MODULATED RADIOTHERAPY (IMRT) VERIFICATION; TREATMENT PLANNING SYSTEMS (TPS);

RADIOTHERAPY;

ACCURACY; ALGORITHM; ARTICLE; COLLIMATOR; COMPUTER PROGRAM; CONTROLLED STUDY; DOSE CALCULATION; DOSIMETRY; FEMALE; FILTER; HUMAN; INTENSITY MODULATED RADIATION THERAPY; IONIZATION CHAMBER; MAJOR CLINICAL STUDY; MALE; MONITORING; PHANTOM; PRIORITY JOURNAL; QUALITY CONTROL; RADIATION DOSE; STATISTICAL ANALYSIS; TREATMENT PLANNING;

ALGORITHMS; BENCHMARKING; COMPUTER SIMULATION; HUMANS; MODELS, BIOLOGICAL; PILOT PROJECTS; RADIOMETRY; RADIOTHERAPY DOSAGE; RADIOTHERAPY PLANNING, COMPUTER-ASSISTED; RADIOTHERAPY, CONFORMAL; SOFTWARE; TREATMENT OUTCOME;

EID: 34547729279     PISSN: 00319155     EISSN: 13616560     Source Type: Journal    
DOI: 10.1088/0031-9155/52/16/018     Document Type: Article

References (33)

1. Ahnesjö A, Weber L, Murman A, Saxner M, Thorslund I and Traneus E 2005 Beam modeling and verification of a photon beam multisource model Med. Phys. 32 1722-37
2. Baker C R, Clements R, Gately A and Budgell G J 2006 A separated primary and scatter model for independent dose calculation of intensity modulated radiotherapy Radiother. Oncol. 80 385-90
3. Chen Z, Xing L and Nath R 2002 Independent monitor unit calculation for intensity modulated radiotherapy using the MIMiC multileaf collimator Med. Phys. 29 2041-51
4. Chen X, Yue N J, Chen W, Saw C B, Heron D E, Stefanik D, Antemann R and Huq M S 2005 A dose verification method using a monitor unit matrix for dynamic IMRT on Varian linear accelerators Phys. Med. Biol. 50 5641-52
5. Clarkson J R 1941 A note on depth doses in fields with irregular shape Br. J. Radiol. 14 265-7
6. Dutreix A, Svensson H, Bjärngard B E, Bridier A, Mijnheer A and Shaw J 1997 Monitor unit calculation for high energy photon beams ESTRO Booklet no. 3
7. Ezzell G A, Galvin J M, Low D, Palta J R, Rosen I, Sharpe M B, Xia P, Xiao Y, Xing L and Yu C X 2003 IMRT subcommittee; AAPM Radiation Therapy committee. Guidance document on delivery, treatment planning, and clinical implementation of IMRT: report of the IMRT Subcommittee of the AAPM Radiation Therapy Committee Med. Phys. 30 2089-115
8. Georg D, Kroupa B, Winkler P and Potter R 2003 Normalized sensitometric curves for the verification of hybrid IMRT treatment plans with multiple energies Med. Phys. 30 1142-50
9. Georg D, Olofsson J, Künzler T and Karlsson M 2004 On empirical methods to determine scatter factors for irregular MLC shaped beams Med. Phys. 31 2222-9
10. Gillis S, De Wagter C, Bohsung J, Perrin B, Williams P and Mijnheer B J 2005 An inter-centre quality assurance network for IMRT verification: results of the ESTRO QUASIMODO project Radiother. Oncol. 76 340-53
11. Hounsell A R and Wilkinson J M 1997 Head scatter modeling for irregular field shaping and beam intensity modulation Phys. Med. Biol. 42 1737-49
12. Kung J H, Chen G T and Kuchnir F K 2000 A monitor unit verification calculation in intensity modulated radiotherapy as a dosimetry quality assurance Med. Phys. 27 2226-30
13. Leybovich L B, Sethi A and Dogan N 2003 Comparison of ionization volumes for IMRT absolute dose verification Med. Phys. 30 119-1123
14. Linthout N, Verellen D, Van Acker S and Storme G 2004 A simple theoretical verification of monitor unit calculation for intensity modulated beams using dynamic mini-multileaf collimation Radiother. Oncol. 71 235-41
15. Low D A, Gerber R L, Mutic S and Purdy J A 1998 Phantoms for IMRT dose distribution measurement and treatment verification Int. J. Radiat. Oncol. Biol. Phys. 40 1231-5
16. Ma C M, Price R A Jr, Li J S, Chen L, Wang L, Fourkal E, Qin L and Yang J 2004 Monitor unit calculation for Monte Carlo treatment planning Phys. Med. Biol. 49 1671-87
17. Mijnheer B, Olszewska A, Fiorino C, Hartmann G and Knöös T 2004 A practical guide to quality control of brachytherapy equipment ESTRO Booklet no. 8
18. Naqvi S A, Sarfaraz M, Holmes T, Yu C X and Li X A 2001 Analysing collimator structure effects in head-scatter calculations for IMRT class fields using scatter raytracing Phys. Med. Biol. 46 2009-28
19. Nyholm T, Olofsson J, Ahnesjö A and Karlsson M 2006a Photon pencil kernel parameterisation based on beam quality index Radiother. Oncol. 78 347-51
20. Nyholm T, Olofsson J, Ahnesjö A and Karlsson M 2006b Modelling lateral beam quality variations in pencil beam kernel based photon dose calculations Phys. Med. Biol. 51 4111-8
21. Olofsson J, Georg D and Karlsson M 2003 A widely tested model for head scatter influence on photon beam output Radiother. Oncol. 67 225-38
22. Olofsson J, Nyholm T, Georg D, Ahnesjö A and Karlsson M 2006a Evaluation of uncertainty predictions and dose output for model based dose calculations in photon beams form multiple linacs Med. Phys. 33 2548-56
23. Olofsson J, Nyholm T, Ahnesjö A and Karlsson M 2006b Dose uncertainties in photon pencil beam calculations at off-axis positions Med. Phys. 33 3418-25
24. Stock M, Kroupa B and Georg D 2005 Interpretation and evaluation of the gamma index and the gamma index angle for the verification of IMRT hybrid plans Phys. Med. Biol. 50 399-411
25. Watanabe Y 2001 Point dose calculations using an analytical pencil beam kernel for IMRT plan checking Phys. Med. Biol. 46 1031-8
26. Wendling M, Louwe R J, McDermott L N, Sonke J J, van Herk M and Mijnheer B J 2006 Accurate two-dimensional IMRT verification using a back-projection EPID dosimetry method Med. Phys. 33 259-73
27. Wiezorek T, Banz N, Schwedas M, Scheithauer M, Salz H, Georg D and Wendt T G 2005 Dosimetric quality assurance for intensity-modulated radiotherapy feasibility study for a filmless approach Strahlenther. Onkol. 181 468-74
28. Winkler P, Hefner A and Georg D 2006 Dosimetric IMRT verification for multiple energies with an a-Si EPID Proc. 9th Int. Workshop on Electronic Portal Imaging (Melbourne)
29. Winkler P, Zurl B, Guss H, Kindl P and Stuecklschweiger G 2005 Performance analysis of a film dosimetric quality assurance procedure for IMRT with regard to the employment of quantitative evaluation methods Phys. Med. Biol. 50 643-54
30. Van Esch A, Depuydt T and Huyskens D P 2004 The use of an a Si-based EPID for routine absolute dosimetric pre-treatment verification of dynamic IMRT fields Radiother. Oncol. 71 223-34
31. Venselaar J, Welleweerd H and Mijnheer B 2001 Tolerances for the accuracy of photon beam dose calculations of treatment planning systems Radiother. Oncol. 60 191-201
32. Xing L, Chen Y, Luxton G, Li J G and Boyer A L 2000 Monitor unit calculation for an intensity modulated photon field by a simple scatter-summation algorithm Phys. Med. Biol. 45 N1-7
33. Yang Y, Xing L, Li J G, Palta J, Chen Y, Luxton G and Boyer A 2003 Independent dosimetric calculation with inclusion of head scatter and MLC transmission for IMRT Med. Phys. 30 2937-47