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The role of imaging techniques in creation of computational models in biomechanics.
Prášilová, Eva ; Valášek, Jiří (referee) ; Marcián, Petr (advisor)
The first part of the bachelor´s thesis is dealt with the processing history of imaging techniques and their indications in a clinical practice. From point of view of the computer modeling, the computer tomography plays an important role in biomechanics. The second part of this treatment describes the scan processing of sections of two human mandible obtained from computer CT and micro-CT tomography. As a non-invasive way procedure can be characterized the image processing techniques, which analyze a bone density and BVF. The manual segmentation was applied in this analysis provided in ROI analysis software. There are shown the graphs of the bone densities of segments of two human mandibles depending on the specimen length and also there are compared the results of the measurements received from the CT and micro-CT tomography. Then follow the results illustrating the correlation of the relations and recalculations, which can be used as the determination tool of the mechanical properties of bone tissue. Finally there are described the computer models created in ANSYS focused on the different bone density analysis and stress strain analysis.
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The influence of a specific movement therapy for bone density in female patients evaluated by bone DXA densitomentry
Kuba, Kryštof ; Strnad, Pavel (advisor) ; Jalovcová, Miroslava (referee)
Title: The influence of a specific movement therapy for bone density in female patients evaluated by bone DXA densitometry Objectives: The aim was to demonstrate the positive impact of movement on bone mineral density in patients suffering from postmenopausal osteoporosis. Summary: The main topic of this thesis is to evaluate potential benefits of an intensive program to the treatment of patients suffering from postmenopausal osteoporosis treated with the standard pharmacological therapy. The marker determined to evaluate the effect of change in bone density was DXA bone densitometry in the standard locations (lumbar spine, proximal femur). The evaluation of measurement results was performed after six-month program. Methods: The experiment, which was the substantial part of this thesis, was based on the method of comparison of input and output values in experimental and control groups. Each group consisted of 15 patients. Measured parameters of bone density were deliberately affected by means of physical interventions in the experimental group of patients. The results were processed and evaluated by Microsoft Excel and SAS 9. 2 programs. Results: Physical intervention is an essential part of therapy in patients suffering from postmenopausal osteoporosis. The experiment proved that a six-month...
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The role of imaging techniques in creation of computational models in biomechanics.
Prášilová, Eva ; Valášek, Jiří (referee) ; Marcián, Petr (advisor)
The first part of the bachelor´s thesis is dealt with the processing history of imaging techniques and their indications in a clinical practice. From point of view of the computer modeling, the computer tomography plays an important role in biomechanics. The second part of this treatment describes the scan processing of sections of two human mandible obtained from computer CT and micro-CT tomography. As a non-invasive way procedure can be characterized the image processing techniques, which analyze a bone density and BVF. The manual segmentation was applied in this analysis provided in ROI analysis software. There are shown the graphs of the bone densities of segments of two human mandibles depending on the specimen length and also there are compared the results of the measurements received from the CT and micro-CT tomography. Then follow the results illustrating the correlation of the relations and recalculations, which can be used as the determination tool of the mechanical properties of bone tissue. Finally there are described the computer models created in ANSYS focused on the different bone density analysis and stress strain analysis.
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