Comparison of measured and computed portal dose for IMRT treatment

Journal of Applied Clinical Medical Physics

Volumn 7, Issue 3, 2006, Pages 65-79

  Cilla, Savino ^a   Viola, Pietro ^a   Azario, Luigi ^b   Grimaldi, Luca ^a   Craus, Maurizio ^a   D'Onofrie, Guido ^a   Fidanzio, Andrea ^b   Deodato, Francesco ^a   Macchia, Gabriella ^a   Digesu, Cinzia ^a   Morganti, Alessio G ^a   Piermattei, Angelo ^a,b  

^a CATHOLIC UNIVERSITY   (Italy)

^b CATHOLIC UNIVERSITY   (Italy)

Author keywords

IMRT; Portal dose; Radiotherapy

Indexed keywords

EID: 34447525761     PISSN: None     EISSN: 15269914     Source Type: Journal    
DOI: 10.1120/jacmp.v7i3.2281     Document Type: Article

References (25)

1. Boellaard R, van Herk M, Uiterwaal U, Mijnheer B. First clinical tests using a liquid-filled electronic portal imaging device and a convolution model for the verification of the midplane dose. Radiother Oncol. 1998;47:303-312.
2. Curtin-Savard AJ, Podgorsak EB. Verification of segmented beam delivery using a commercial electronic portal imaging device. Med Phys. 1999;26(5):737-742.
3. Louwe RJW, Tielemburg R, van Ingen KM, Mijnheer BJ, van Herk MB. The stability of liquid-filled matrix ionization chamber electronic portal imaging devices for dosimetry purposes. Med Phys. 2004;31:(4):819-827.
4. Chang J, Ling CC. Using the frame averaging of aS500 EPID for IMRT verification. J Appl Clin Med Phys. 2003;4:287-299.
5. Ying X, Geer LY, Wong JW. Portal dose images II: Patient dose estimation. Int J Radiat Oncol Biol Phys. 1990;18:1465-1475.
6. McNutt TR, Mackie TR, Reckwerdt P, Paliwal BR. Modeling dose distributions from portal dose images using the convolution/ superposition method. Med Phys. 1996;23(8):1381-1392.
7. McDermott LN, Wendling M, Sonke J, et al. First clinical experience with pre-treatment and in vivo IMRT verification using EPID dosimetry. Med Phys. 2005;32(6):2090.
8. Van Esch A, Depuydt T, Huyskens DP. The use of an aSi-based EPID for routine absolute dosimetric pre-treatment verification of dynamic IMRT fields. Radiat Oncol. 2004;71:223-234.
9. Hansen VN, Evans PM, Budgell GJ, et al. Quality assurance of the dose delivered by small radiation segments. Phys Med Biol. 1998;43:2665-2675.
10. Piermattei A, Cilla S, Pepe D, et al. Verification of computed portal doses by a linear array of liquid ion-chambers. Phys Med. 2004;XX(3):111-119.
11. Martens C, De Wagter C, De Neve W. The value of the LA48 linear ion chamber array for characterization of intensity-modulated beams. Phys Med Biol. 2001;46:1131-1148.
12. Low DA, Harms WB, Mutic S, Purdy JA. A technique for the quantitative evaluation of dose distributions. Med Phys. 1998;25(5):656-661.
13. Spezi E, Angelini AL, Romani F, Ferri A. Characterization of a 2D ion chamber array for the verification of radiotherapy treatments. Phys Med Biol. 2005;50:3361-3373.
14. IAEA (International Atomic Energy Agency). Absorbed dose in external beam radiotherapy: An international code of practice for dosimetry based on standards of absorbed dose to water. IAEA TRS 398; 2001.
15. Van Dyke J, Barnett RB, Cygler JE, Shragge PC. Commissioning and quality assurance of treatment planning computers. Int J Radiat Oncol Biol Phys. 1993;26:261-273.
16. Piermattei A, Azario L, Fidanzio A, Arcovito G. Quasi water-equivalent detector for photon beams that present lateral electron disequilibrium. Phys Med. 1998;24(1):9-17.
17. Létourneau D, Gulam M, Yan D, Oldham M, Wong JW. Evaluation of a 2D diode array for IMRT quality assurance. Radiat Oncol. 2004;70:199-206.
18. Jursinic PA, Nelms BE. Diode array for verification of IMRT delivery. Med Phys. 2003;30(5):870-879.
19. Cirio R, Garelli E, Giordanengo S, Marchetto F, Peroni C. Preliminary results from a comparison of 2D verification systems for IMRT. Estro 23 Annual Meeting, Amsterdam, 2004 October 24-28. Radiother Oncol. 2004;73(Suppl 1):256:S116.
20. Amerio S, Boriano A, Bourhabel F, et al. Dosimetric characterization of a large area pixel segmented ionization chamber. Med Phys. 2004;31:414-420.
21. Van Esch A, Vanstraelen B, Verstraete J, Kutcher G, Huyskens D Pre-treatment dosimetric verification by means of a liquid-filled electronic portal imaging device during dynamic delivery of intensity modulated treatment fields. Radiother Oncol. 2001;60(2):181-190.
22. Warkentin B, Steciw S, Rathee S, Fallone BG. Dosimetric IMRT verification with a flat-panel EPID. Med Phys. 2003;30:3143-3155.
23. Louwe RJW, McDermott LN, Sonke JJ, et al. The long-term stability of amorphous silicon flat panel imaging device for dosimetry purposes. Med Phys. 2004;31:2089-2095.
24. Chin PW, Lewis DG, Spezi E. Correction for dose-response variations in a scanning liquid ion chamber EPID as a function of linac gantry angle. Phys Med Biol. 2004;49:N93-N103.
25. McDermott LN, Louwe RJ, Sonke JJ, van Herk MB, Mijnheer BJ. Dose-response and ghosting effects of an amorphous silicon electronic portal imaging device. Med Phys. 2004;13:115-122.