Advanced Radiation DOSimetry phantom (ARDOS): a versatile breathing phantom for 4D radiation therapy and medical imaging
| Autor: | Hunor Kertesz, Elisabeth Steiner, S. Rollet, Andrej Sipaj, Wolfgang Lechner, Dietmar Georg, Piotr Andrzejewski, B. Knäusl, Natalia Kostiukhina, Ivo Rausch, Hugo Furtado, Peter Kuess |
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| Rok vydání: | 2017 |
| Předmět: |
Respiratory-Gated Imaging Techniques
Lung Neoplasms Movement medicine.medical_treatment Imaging phantom 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine medicine Medical imaging Humans Dosimetry Radiology Nuclear Medicine and imaging Four-Dimensional Computed Tomography Radiometry Lung Reproducibility Radiological and Ultrasound Technology medicine.diagnostic_test Phantoms Imaging business.industry Radiotherapy Planning Computer-Assisted Respiration Reproducibility of Results Thorax Torso Radiation therapy medicine.anatomical_structure Positron emission tomography Positron-Emission Tomography 030220 oncology & carcinogenesis Breathing Nuclear medicine business |
| Zdroj: | Physics in Medicine & Biology. 62:8136-8153 |
| ISSN: | 1361-6560 |
| Popis: | A novel breathing phantom was designed for being used in conventional and ion-beam radiotherapy as well as for medical imaging. Accurate dose delivery and patient safety are aimed to be verified for four-dimensional (4D) treatment techniques compensating for breathing-induced tumor motion. The phantom includes anthropomorphic components representing an average human thorax. It consists of real tissue equivalent materials to fulfill the requirements for dosimetric experiments and imaging purposes. The different parts of the torso (lungs, chest wall, and ribs) and the tumor can move independently. Simple regular movements, as well as more advanced patient-specific breathing cycles are feasible while a reproducible setup can be guaranteed. The phantom provides the flexibility to use different types of dosimetric devices and was designed in a way that it is robust, transportable and easy to handle. Tolerance levels and the reliability of the phantom setup were determined in combination with tests on motion accuracy and reproducibility by using infrared optical tracking technology. Different imaging was performed including positron emission tomography imaging, 4D computed tomography as well as real-time in-room imaging. The initial dosimetric benchmarking studies were performed in a photon beam where dose parameters are predictable and the dosimetric procedures well established. |
| Databáze: | OpenAIRE |
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