Dose recalculation in megavoltage cone-beam CT for treatment evaluation: Removal of cupping and truncation artefacts in scans of the thorax and abdomen

Radiotherapy and Oncology

Volumn 94, Issue 3, 2010, Pages 359-366

  Petit, Steven F ^a   van Elmpt, Wouter J C ^a   Lambin, Philippe ^a   Dekker, André L A J ^a  

^a MAASTRICHT UNIVERSITY MEDICAL CENTER   (Netherlands)

Author keywords

Cupping artefacts; Dose recalculation; Dose reconstruction; Megavoltage cone beam CT (MVCBCT); Treatment evaluation; Truncation artifacts

Indexed keywords

ABDOMEN; ANTHROPOMETRY; ARTICLE; CALIBRATION; CANCER RADIOTHERAPY; CLINICAL ARTICLE; CONE BEAM COMPUTED TOMOGRAPHY; CONTROLLED STUDY; HUMAN; LUNG CANCER; PATHOLOGICAL ANATOMY; PRIORITY JOURNAL; RADIATION DOSE; RECTUM CANCER; SENSITIVITY ANALYSIS; STEREOTACTIC TREATMENT; THORAX; THREE DIMENSIONAL IMAGING; VALIDATION STUDY;

ABDOMEN; ALGORITHMS; ARTIFACTS; CONE-BEAM COMPUTED TOMOGRAPHY; HUMANS; LUNG NEOPLASMS; PHANTOMS, IMAGING; RADIOTHERAPY DOSAGE; RECTAL NEOPLASMS; THORAX; TREATMENT OUTCOME;

EID: 77249108194     PISSN: 01678140     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.radonc.2009.12.001     Document Type: Article

References (25)

1. Verellen D., Ridder M.D., Linthout N., Tournel K., Soete G., and Storme G. Innovations in image-guided radiotherapy. Nat Rev Cancer 7 (2007) 949-960
2. Gayou O., and Miften M. Commissioning and clinical implementation of a mega-voltage cone beam CT system for treatment localization. Med Phys 34 (2007) 3183-3192
3. Mosleh-Shirazi M.A., Evans P.M., Swindell W., Webb S., and Partridge M. A cone-beam megavoltage CT scanner for treatment verification in conformal radiotherapy. Radiother Oncol 48 (1998) 319-328
4. Yan D., Vicini F., Wong J., and Martinez A. Adaptive radiation therapy. Phys Med Biol 42 (1997) 123-132
5. Dawson L.A., and Jaffray D.A. Advances in image-guided radiation therapy. J Clin Oncol 25 (2007) 938-946
6. Chen J., Morin O., Aubin M., Bucci M.K., Chuang C.F., and Pouliot J. Dose-guided radiation therapy with megavoltage cone-beam CT. Br J Radiol 79 (2006) S87-S98
7. McDermott L.N., Wendling M., Nijkamp J., et al. 3D in vivo dose verification of entire hypo-fractionated IMRT treatments using an EPID and cone-beam CT. Radiother Oncol 86 (2008) 35-42
8. Nijsten S.M., van Elmpt W.J., Mijnheer B.J., et al. Prediction of DVH parameter changes due to setup errors for breast cancer treatment based on 2D portal dosimetry. Med Phys 36 (2009) 83-94
9. Hansen V.N., Evans P.M., and Swindell W. The application of transit dosimetry to precision radiotherapy. Med Phys 23 (1996) 713-721
10. Cheung J., Aubry J.F., Yom S.S., Gottschalk A.R., Celi J.C., and Pouliot J. Dose recalculation and the dose-guided radiation therapy (DGRT) process using megavoltage cone-beam CT. Int J Radiat Oncol Biol Phys 74 (2009) 583-592
11. van Elmpt W., Nijsten S., Petit S., Mijnheer B., Lambin P., and Dekker A. 3D in vivo dosimetry using megavoltage cone-beam CT and EPID dosimetry. Int J Radiat Oncol Biol Phys 73 (2009) 1580-1587
12. van Elmpt W., McDermott L., Nijsten S., Wendling M., Lambin P., and Mijnheer B. A literature review of electronic portal imaging for radiotherapy dosimetry. Radiother Oncol 88 (2008) 289-309
13. Spies L., Ebert M., Groh B.A., Hesse B.M., and Bortfeld T. Correction of scatter in megavoltage cone-beam CT. Phys Med Biol 46 (2001) 821-833
14. Partridge M., Ebert M., and Hesse B.M. IMRT verification by three-dimensional dose reconstruction from portal beam measurements. Med Phys 29 (2002) 1847-1858
15. Morin O., Chen J., Aubin M., et al. Dose calculation using megavoltage cone-beam CT. Int J Radiat Oncol Biol Phys 67 (2007) 1201-1210
16. Petit S.F., van Elmpt W.J., Nijsten S.M., Lambin P., and Dekker A.L. Calibration of megavoltage cone-beam CT for radiotherapy dose calculations: correction of cupping artifacts and conversion of CT numbers to electron density. Med Phys 35 (2008) 849-865
17. Maltz J.S., Gangadharan B., Bose S., et al. Algorithm for X-ray scatter, beam-hardening, and beam profile correction in diagnostic (kilovoltage) and treatment (megavoltage) cone beam CT. IEEE Trans Med Imaging 27 (2008) 1791-1810
18. Aubry J.F., Cheung J., Morin O., Gottschalk A., Beaulieu L., and Pouliot J. Correction of megavoltage cone-beam CT images of the pelvic region based on phantom measurements for dose calculation purposes. J Appl Clin Med Phys 10 (2009) 2852
19. Aubry J.F., Pouliot J., and Beaulieu L. Correction of megavoltage cone-beam CT images for dose calculation in the head and neck region. Med Phys 35 (2008) 900-907
20. van Zijtveld M., Dirkx M., and Heijmen B. Correction of conebeam CT values using a planning CT for derivation of the "dose of the day". Radiother Oncol 85 (2007) 195-200
21. Ford E.C., Chang J., Mueller K., et al. Cone-beam CT with megavoltage beams and an amorphous silicon electronic portal imaging device: potential for verification of radiotherapy of lung cancer. Med Phys 29 (2002) 2913-2924
22. Sillanpaa J., Chang J., Mageras G., et al. Low-dose megavoltage cone-beam computed tomography for lung tumors using a high-efficiency image receptor. Med Phys 33 (2006) 3489-3497
23. Pouliot J., Bani-Hashemi A., Chen J., et al. Low-dose megavoltage cone-beam CT for radiation therapy. Int J Radiat Oncol Biol Phys 61 (2005) 552-560
24. Noel P.B., Walczak A.M., Xu J., Corso J.J., Hoffmann K.R., and Schafer S. GPU-based cone beam computed tomography. Comput Methods Programs Biomed (2009)
25. Langen K.M., Meeks S.L., Poole D.O., et al. The use of megavoltage CT (MVCT) images for dose recomputations. Phys Med Biol 50 (2005) 4259-4276