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Software tool for education of the computed tomography
Doležalová, Anna ; Králík, Martin (referee) ; Mézl, Martin (advisor)
This semestral thesis is focusing on the process of displaying X-ray scanning and it’s simulation. There is described X-ray radiation and it’s possible interactions and changes. It’s also focused on the origin and detection of this radiation. In the practical part of the thesis, there is simulated the origin and attenuation of spectrum while comming through material. Then simulation software is created using MATLAB program. The simulation software allows to simulate basic processes of classical systems: X-ray tube, the interaction of radiation with the patient and subsequent detection. After selecting parametrs of simulation, the effects of the selected parametrs and X-ray spectrum will be displayed. The thesis also describes and subsequently simulates how image reconstruction of computed tomography works.
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The analysis of laboratory X-ray device using possibilities and detection to ensure the entery into nuclear power plant.
Vlk, Petr ; Zeman, Miroslav (referee) ; Varmuža, Jan (advisor)
The thesis deals with the use of X-ray device for analysis of imported objects when entering a nuclear power plant. It describes the principles of X-ray generation and detection and techniques used in current X-ray devices. The thesis includes analysis of legislative requirements related to the safety of nuclear power plants and operation of X-ray devices. The benefit of the thesis is a proposed laboratory task using the Heimann HI-SCAN 6040-A X-ray device, which demonstrates detection and differentiation of analyzed objects and various types of materials. An integral part is the verification of the dose rate limits near the laboratory X-ray device, based on the knowledge of the legislative requirements.
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Radiotherapy of Benign Diseases
BARTOŠOVÁ, Kateřina
The bachelor's thesis deals with current indications of non-cancer radiotherapy and methods of their implementation, including the sources of ionizing radiation used. Non-cancer therapy has been used for over 100 years. Treatment with ionizing radiation in non-cancer diseases brings the expected effect, risk is very small due to the low doses used. Another advantage of this therapy is also simpler irradiation techniques, often we can only make do with one or two input fields. The main principles include the application of the smallest and most effective individual and total doses of radiation with maximum investigation of surrounding healthy tissues. The introduction of the theoretical part contains a brief overview of information on non-cancer radiotherapy and clarifies the non-cancer diseases affected by ionizing radiation treatment. Furthermore, there is characterized by an X-ray machine and general information about X-ray therapy and the method of application of radiation. The second part of the thesis, i.e. the practical part, focuses on the therapy of the heel spurs, or calcar calcanei, and the evaluation of the effectiveness of X-ray therapy after its completion. Respondents are patients who have been irradiated for pat pain with calcar calcanei diagnosis at the Oncology Department of The Hospital České Budějovice a.s. in the period 2019-2020. In this work were used a quantitative type of research investigation and anonymized data from the patient register of the Oncology Department of the Hospital České Budějovice a.s. The overall concept of this bachelor's thesis can serve as study material for students of higher education institutions in the field of radiological assistant and for the creation of an information leaflet for future patients or for the general public.
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The influence of radiological assistant on elimination of errors during PA chest projection
Feltlová, Julie ; Suchánek, Vojtěch (advisor) ; Adla, Theodor (referee)
The topic of my work is "The role of a radiological assistant in the elimination of the mistakes during the postero-anterior view of the chest". I was particularly interested in this topic because it was the one I wished to get acquainted with in each and every detail, from the very beginning of the examination till its end. The X-ray is kind of a electromagnetic wave with the wave-length ranging from 10-9 to 10-11 metres. The X-ray machine consists of the X-ray emitter and the generator. The heart of the X-ray machine is an electrode pair, a cathode and a tungsten anode, that is pegged inside a glass vacuum tube. An X-ray picture is a two-dimensional picture of a plastic subject. Iťs a summarizing picture, that means it contains information about all tissues without order. Powered by TCPDF (www.tcpdf.org)
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Software tool for education of the computed tomography
Doležalová, Anna ; Králík, Martin (referee) ; Mézl, Martin (advisor)
This semestral thesis is focusing on the process of displaying X-ray scanning and it’s simulation. There is described X-ray radiation and it’s possible interactions and changes. It’s also focused on the origin and detection of this radiation. In the practical part of the thesis, there is simulated the origin and attenuation of spectrum while comming through material. Then simulation software is created using MATLAB program. The simulation software allows to simulate basic processes of classical systems: X-ray tube, the interaction of radiation with the patient and subsequent detection. After selecting parametrs of simulation, the effects of the selected parametrs and X-ray spectrum will be displayed. The thesis also describes and subsequently simulates how image reconstruction of computed tomography works.
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The analysis of laboratory X-ray device using possibilities and detection to ensure the entery into nuclear power plant.
Vlk, Petr ; Zeman, Miroslav (referee) ; Varmuža, Jan (advisor)
The thesis deals with the use of X-ray device for analysis of imported objects when entering a nuclear power plant. It describes the principles of X-ray generation and detection and techniques used in current X-ray devices. The thesis includes analysis of legislative requirements related to the safety of nuclear power plants and operation of X-ray devices. The benefit of the thesis is a proposed laboratory task using the Heimann HI-SCAN 6040-A X-ray device, which demonstrates detection and differentiation of analyzed objects and various types of materials. An integral part is the verification of the dose rate limits near the laboratory X-ray device, based on the knowledge of the legislative requirements.
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The influence of radiological assistant on elimination of errors during PA chest projection
Feltlová, Julie ; Suchánek, Vojtěch (advisor) ; Adla, Theodor (referee)
The topic of my work is "The role of a radiological assistant in the elimination of the mistakes during the postero-anterior view of the chest". I was particularly interested in this topic because it was the one I wished to get acquainted with in each and every detail, from the very beginning of the examination till its end. The X-ray is kind of a electromagnetic wave with the wave-length ranging from 10-9 to 10-11 metres. The X-ray machine consists of the X-ray emitter and the generator. The heart of the X-ray machine is an electrode pair, a cathode and a tungsten anode, that is pegged inside a glass vacuum tube. An X-ray picture is a two-dimensional picture of a plastic subject. Iťs a summarizing picture, that means it contains information about all tissues without order. Powered by TCPDF (www.tcpdf.org)
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X-ray Unit Parameters Optimisation Based on the Laboratory Type
RADMACHER, Erich
Despite the rapid development of modern imaging methods, the radiography has remained the basic tool in radiodiagnostics. Individual radiography laboratories need adequate instrumentation for their flawless operation. The parameters of an X-ray unit must correspond to the type and quantity of its output required. The first part of the dissertation describes an X-ray unit and its individual structural units, including their principle of function. The necessary X-ray equipment and tools are also described, as well as the generation of a radiographic image in film and digital radiography. The next part of the dissertation presents the questionnaire inquiry performed. The objective of the inquiry was to obtain data on the specifics of various types of radiographic laboratories and the X-ray units used. The qualitative and quantitative statistical data obtained are presented, and the effects of the unit{\crq}s various parameters on the laboratory{\crq}s workflow are evaluated, taking the users{\crq} judgement of the instruments into account. On the basis of the number of exposures and other data, the basic types of radiography laboratories are specified. In conclusion, the optimum configuration of the parameters of an X-ray unit for individual types of laboratories is proposed. The work could serve as an aid for the orientation of the selection committee when purchasing a new unit.
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