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National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Skin dose mapping for fluoroscopically guided interventions in cardiology
 Melichar, Ondřej ; Králík, Martin (referee) ; Mézl, Martin (advisor)
The subject of this work is an issue analysis of possible skin damage inflicted during fluoroscopically guided surgery and design of a radiation dose tracking software for patients undergoing an interventional cardiac surgery. The tool is implemented in Unity 3D engine. Mapping is performed by simulating the X-ray machine movement around an anthropomorphic model in conjunction with simulated irradiation using rays emitted from the X-ray machine. The input data needed for dose tracking compose of radiation dose structured report and patient specific biometrics depending on the anthropomorphic model used. Output data is presented as a heatmap mapped directly onto patient’s 3D. This can be used for early diagnostics of radiation dermatitis.
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Skin dose mapping for fluoroscopically guided interventions in cardiology
 Melichar, Ondřej ; Králík, Martin (referee) ; Mézl, Martin (advisor)
The subject of this work is an issue analysis of possible skin damage inflicted during fluoroscopically guided surgery and design of a radiation dose tracking software for patients undergoing an interventional cardiac surgery. The tool is implemented in Unity 3D engine. Mapping is performed by simulating the X-ray machine movement around an anthropomorphic model in conjunction with simulated irradiation using rays emitted from the X-ray machine. The input data needed for dose tracking compose of radiation dose structured report and patient specific biometrics depending on the anthropomorphic model used. Output data is presented as a heatmap mapped directly onto patient’s 3D. This can be used for early diagnostics of radiation dermatitis.
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The comparism of dose aquivalents interventional radiology and cardiology
 GOMOLOVÁ, Iveta
The main topics of this work are personal doses of ionizing radiation and their comparison with workers in the interventional radiology and interventional cardiology. National Radiation Protection draws attention to the fact that doses of interventional cardiologists are higher than doses of interventional radiologists. In the framework of this bachelor thesis it was examined whether this hypothesis is true for the assisting mid staff, range of the doses and what to do to reduce them. The doses for radiology assistant and nurses assisting with the operations in interventional cardiology and nurses assisting with performances in interventional radiology were compared over a period of seven years for these purposes. These data are processed by methods of descriptive statistics and recorded in graphic form. The theoretical part of the thesis mentions properties of ionizing radiation. It explains the interaction of ionizing radiation with matter and cells and its effects on human health. Finally, the issue of radiation hygiene in terms of occupational exposure and the legislation that governs records of dosage parameters throughout the European Union is outlined it the thesis as well. The practical part deals with personal dose equivalents of individual employees of interventional cardiology and interventional radiology obtained from the Prague Institute of National Service of Personal Dosimetry, which evaluates these doses. Given the results, both hypotheses can be considered as confirmed. This confirmation is caused by lower number of employees and lower number of IC workplaces that focus on larger numbers of patients. This implies that the reduction of occupational exposure is achieved with a sufficient number of qualified personnel to enable more frequent substitution, proactive approach in compliance with radiation hygiene and very good cooperation of the entire team. The work's benefits can be seen especially in the ODE quantification differences within IC and IR and in defining the possibility of reducing the radiation load.
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