In vivo EBT radiochromic film dosimetry of electron beam for Total Skin Electron Therapy (TSET) |
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| Affiliation: | 1. AFaR U.O.C. Fisica Sanitaria, Ospedale “S. Giovanni Calibita Fatebenefratelli”, Isola Tiberina, 39, 00186 Rome, Italy;2. AFaR U.O.C. Radioterapia, Ospedale “S. Giovanni Calibita Fatebenefratelli”, Rome, Italy;1. Physics Department, Faculty of Science, Saint Joseph University, B.P. 11-514 Riad El Solh, Beirut 1107 2050, Lebanon;2. Department of Radiation-Oncology, Hôtel-Dieu de France Hospital, PO Box HDF 166830, Beirut, Lebanon;3. The Open University, Faculty of Science, Department of Physical Sciences, Walton Hall, MK7 6AA Milton Keynes, United Kingdom;1. Hospital Universitari Sant Joan de Reus, Servicio de Física Médica, Reus (Tarragona), Spain;2. Hospital IMED, Servicio de Oncología Radioterápica, Elche (Alicante), Spain;3. Hospital Universitario Virgen de la Arrixaca, El Palmar (Murcia), Spain;1. The Research Institute of Natural Science and Department of Physics, Gyeongsang National University, Jinju 660-701, South Korea;2. Health Physics Team, Korea Atomic Energy Research Institute, P.O. Box 105, Yuseong, Daejeon 305-600, South Korea;1. Gent University, Radiotherapy Department, De Pintelaan, 185, 9000 Gent, Belgium;2. SCK•CEN Belgian Nuclear Research Centre, Boeretang 200, 2400 Mol, Belgium;3. University of VUB, UZ Brussel, Radiotherapie, Groep Medische Fysica, Brussels, Belgium;4. UFSCAR. Dpto. de Física. Rodovia Washington Luís, km 235, 310, São Carlos, SP 13565-905, Brazil;5. Institute of Medical Physics. School of Physics – University of Sydney, Australia;1. School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China;2. School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China |
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| Abstract: | EBT radiochromic films were used to determine skin-dose maps for patients undergone Total Skin Electron Therapy (TSET). Gafchromic EBT radiochromic film is one of the newest radiation-induced auto-developing photon and electron-beam analysis films available for therapeutic radiation dosimetry in radiotherapy applications. EBT films can be particularly useful in TSET; due to patient morphology, underdosed regions typically occur, and the radiochromic film represents a suitable candidate for monitoring them.In this study, TSET was applied to treat cutaneous T-cell lymphoma. The technique for TSET was implemented by using an electron beam with a nominal energy of 6 MeV. The patient was treated in a standing position using dual angled fields in order to obtain the greatest dose uniformity along the patient's longitudinal axis. The electron beam energy was degraded by a PMMA filter. The in vivo dose distribution was determined through the use of EBT films, as well as of thermoluminescent dosimeters for comparison (TLDs). EBT results showed a reasonable agreement with TLDs data. |
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