Browse > Article

A Study on Treatment Target Position Verification by using Electronic Portal Imaging Device & Fractionated Stereotatic Radiotherapy  

Lee, Dong-Hoon (Tongmyong University)
Kwon, Jang-Woo (Tongmyong University)
Park, Seung-Woo (Korea Institute of Radiological & Medical Sciences)
Kim, Yoon-Jong (Korea Institute of Radiological & Medical Sciences)
Lee, Dong-Han (Korea Institute of Radiological & Medical Sciences)
Ji, Young-Hoon (Korea Institute of Radiological & Medical Sciences)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.46, no.3, 2009 , pp. 44-51 More about this Journal
Abstract
It is very important to verify generated setup errors in cancer therapy by using a high energy radiation and to perform the precise radiation therapy. Specially, the verification of treatment position is very crucial in special therapies like fractionated stereotatic radiotherapy (FSRT). The FSRT uses normally high-dose, small field size for treating small intracranial lesions. To estimate the developed FSRT system, the isocenter accuracy of gantry, couch and collimator were performed and a total of inaccuracy was less than ${\pm}1mm$. Precise beam targeting is crucial when using high-dose, small field size FSRT for treating small intracranial lesions. The EPID image of the 3mm lead ball mounted on the isocenter with a 25mm collimator cone was acquired and detected to the extent of one pixel (0.76mm) after comparing the difference between the center of a 25mm collimator cone and a 3 mm ball after processing the EPID image. In this paper, the radiation treatment efficiency can be improved by performing precise radiation therapy with a developed video based EPID and FSRT at near real time
Keywords
EPID; FSRT; Radiation Therapy; Head Cancer; Therapy Beam; Treatment Efficiency;
Citations & Related Records
연도 인용수 순위
  • Reference
1 K. Theodorou, C. Kappas, C. Tsokas., 'A new non-invasive and relocatable immobilization frame for fractionated stereotactic radiotherapy', Radiotherapy and Oncology, Vol. 47, pp. 313-317, 1998   DOI   ScienceOn
2 M. C. Schell, V. Smith, D. A. Larson, et al., 'Evaluation of radiosurgery techniques with cumulative dose volume histograms in linac-based stereotactic external beam irradiation,' Int. J. Radiation Oncology Biol. Phys., Vol. 20, pp. 1325-1330, 1990   DOI   PUBMED   ScienceOn
3 A. P. Warrington 'Quality assurance in fractionated stereotactic radiotherapy,' radiother. oncol. Vol. 30, pp. 239-246, 1994   DOI   ScienceOn
4 D. Lei, S. Almon, T. Samuel 'Verification of radiosurgery target point alignment with an elcetronic portal imaging device(EPID),' Med. Phy., Vol. 24(2), pp. 263-267, 1997   DOI   ScienceOn
5 R. W. Laing, A. P. Warrington, F. Hines, et al., 'Fractionated stereotactic external beam radiotherapy in the management of brain metastasis,' Eur. J. Cancer, Vol. 29, pp. 1387-1391, 1993   DOI   ScienceOn
6 C. F. Serago, 'Radiosurgery target point alignment errors detected with portal film verification,' Int. J. Radiation Oncology Biol. Phys., Vol. 24, pp. 777-780, 1992   DOI   PUBMED   ScienceOn
7 A. C. Savard, E. B. Podgorsak, 'An electronic portal imaging device as a physics tool,' Medical Dosimetry, Vol. 22(2), pp. 101-105, 1997   DOI   ScienceOn
8 E. C. McCullough, K. P. McCollough, 'Improving agreement between radiation-delineated field edges on simulation and portal films : The edge tolerance test tool,' Med. Phys., Vol. 20, pp. 375-376, 1993   DOI   ScienceOn
9 E. Shaw, R. Kline, M. Gillin, et al., 'radiosurgery quality assurance guidelines,' Int. J. Radiation Oncology Biol. Phys., Vol. 27, pp. 1231-1239, 1993   DOI   ScienceOn
10 M. V. Herk, H. Meertens, 'A matrix ionisation chamber imaging device for on-line patient setup verification during radiotherapy,' Radiother. Oncol., Vol. 11, pp. 369-378, 1988   DOI   ScienceOn
11 L. E. Antonuk, C. W. Kim, J. Boudry, et al. 'Development of hydrogenated amorphous silicon sensors for diagnostic x-ray imaging' IEEE Trans. Nuc. Sci., Vol. 38, pp. 636-640, 1991   DOI   ScienceOn
12 M. Goitein, J. Busse, 'Immobilization errors: Some theoretical considerations,' Radiology, Vol. 117, pp. 407-412, 1975   DOI   PUBMED   ScienceOn
13 K. Luchka 'Assessing radiation and light field congruence with a video based electronic portal imaging device,' Med. Phy., Vol. 23(7), pp. 1245-1252, 1996   DOI   ScienceOn
14 A. Dutreix, 'When and how can we improve precision in radiotherapy?,' Radiother. Oncol. Vol. 2, pp. 275-292, 1984   DOI   ScienceOn
15 R. J. Maciunas, R. L. Galloway, J. W. Latimer., 'The application accuracy of stereotactic frames,' Neurosurgery, Vol. 35(4), pp. 682-695, 1994   DOI   PUBMED   ScienceOn
16 K. Mah, J. VanDyk, T. Keane, et al., 'Acute radiation-induced pulmonary damage: A clinical study on the response to fractionated radiotherapy,' Int. J. Radiat. Oncol. Biol. Phys., Vol. 13, pp. 179-188, 1987   DOI   PUBMED   ScienceOn