A multicenter dosimetry study to evaluate the imaging dose from Elekta XVI and Varian OBI kV-CBCT systems to cardiovascular implantable electronic devices (CIEDs) |
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| Institution: | 1. Department of Physics, University of Trieste, Trieste, Italy;2. Department of Medical Physics, S. Chiara Hospital, APSS Trento, Italy;3. Department of Medical Physics, Fondazione Poliambulanza, Istituto Ospedaliero, Brescia, Italy;4. Department of Medical Physics, Azienda Sanitaria Universitaria Integrata di Udine, Italy;5. Department of Medical Physics, Azienda Sanitaria Universitaria Integrata di Trieste, Trieste, Italy;6. National Institute for Nuclear Physics (INFN), Sezione di Trieste, Trieste, Italy;1. Institute of Radiation Physics, Lausanne University Hospital, Lausanne, Switzerland;2. University of Geneva, Geneva, Switzerland;3. Clinique de Genolier, Genolier, Switzerland;4. Department of Radio-Oncology, Lausanne University Hospital, Lausanne, Switzerland;1. King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi Arabia;2. Department of Clinical Physics and Bio-Engineering, Gartnavel Royal Hospital, University of Glasgow, Glasgow, UK;3. International Commission on Radiological Protection (ICRP), Ottawa, Canada;1. Department of Radiation Oncology, Saarland University Medical Center, Homburg/Saar, Germany;2. Hochschule für Technik und Wirtschaft des Saarlandes, Saarbrücken, Germany;3. Department of Radiation Oncology, University of Minnesota, Minneapolis, Minnesota;1. Department of Radiation Oncology, University Medical Center Mannheim, Medical Faculty Mannheim, Heidelberg University, Germany;2. Medical Faculty Mannheim, Heidelberg University, Germany;3. First Department of Medicine, University Medical Center Mannheim, Medical Faculty Mannheim, Heidelberg University, Germany;4. DZHK (German Centre for Cardiovascular Research) partner site, Mannheim, Germany;5. Department of Biomathematics and Medical Statistics, University Medical Center Mannheim, University of Heidelberg, Germany;1. Department of Radiation Oncology, “G. D’Annunzio” University, “SS. Annunziata” Hospital, Chieti, Italy;2. Medical Physics Unit, ASST “Papa Giovanni XXIII”, Bergamo, Italy;3. Medical Physics Unit, “S. Chiara” Hospital, Trento, Italy;4. Medical Physics Unit, “Tor Vergata” University, Rome, Italy;5. Electrophysiology Unit, ASST “Papa Giovanni XXIII”, Bergamo, Italy;6. Cardiology Unit, “S. Chiara” Hospital, Trento, Italy;7. Intensive Cardiac Care Unit, “SS. Annunziata” Hospital, Chieti, Italy;8. Arrhythmology Unit, “SS. Annunziata” Hospital, Chieti, Italy;1. The National Centre for Applied Physics, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia;2. Department of Clinical Physics and Bioengineering, University of Glasgow, Glasgow, UK |
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| Abstract: | The increasing use of daily CBCT in radiotherapy has raised concerns about the additional dose delivered to the patient, and it can also become a concern issue for those patients with cardiovascular implantable electronic devices (CIEDs) (Pacemaker PM] and Implantable Cardioverter Defibrillator ICD]). Although guidelines highly recommend that the cumulative dose received by CIEDs should be kept as low as possible, and a safe threshold based on patient risk classification needs to be respected, this additional imaging dose is not usually considered. Four centers with different dosimetry systems and different CBCT imaging protocols participated in this multicenter study to investigate the imaging dose to the CIEDs from Elekta XVI and Varian OBI kV-CBCT systems. It was found that although imaging doses received by CIEDs outside the CBCT field are negligible, special attention should be paid to this value when CIEDs are inside the field because the daily use of CBCT can sometimes contribute considerably to the total dose received by a CIED. |
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| Keywords: | Imaging dose Cardiovascular implantable electronic devices kV-Cone Beam CT System Gafchromic XRQA2 film MOSFET TLD |
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