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Segmentation of the cord canal and intervertebral discs in MRI data
Koban, Martin ; Odstrčilík, Jan (referee) ; Jakubíček, Roman (advisor)
The concern of this thesis is development of the method for the spinal canal and intervertebral discs segmentation in volume MRI data. The primary aim is to achieve the highest possible level of automation and accuracy allowing for reliable quantitative evaluation of the results. The algorithm is based on the random walk model in combination with a specific active contour method formulated through level set concept. The proposed approach is tested using a database of three-dimensional T2-weighted MR images, which also contains referential manual segmentation of intervertebral discs.
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3d Segmentation Of The Spinal Canal And Intervertebral Discs In Mri Data
Koban, Martin
The concern of this work is development of the method for the spinal canal and intervertebral discs (IVD) segmentation in volume MRI data. The primary aim is to achieve the highest possible level of automation and accuracy allowing for reliable quantitative evaluation of the results. The algorithm is based on the random walk model in combination with a specific active contour method formulated through level set concept. The proposed approach is tested using a database of 3D T2-weighted MR images, which also contains referential manual segmentation of IVD.
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Segmentation of the cord canal and intervertebral discs in MRI data
Koban, Martin ; Odstrčilík, Jan (referee) ; Jakubíček, Roman (advisor)
The concern of this thesis is development of the method for the spinal canal and intervertebral discs segmentation in volume MRI data. The primary aim is to achieve the highest possible level of automation and accuracy allowing for reliable quantitative evaluation of the results. The algorithm is based on the random walk model in combination with a specific active contour method formulated through level set concept. The proposed approach is tested using a database of three-dimensional T2-weighted MR images, which also contains referential manual segmentation of intervertebral discs.
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Imaging algorithm for suspected spinal canal disease and related therapeutic possibilities in radiology
NOVOTNÁ, Martina
The disease of the spinal canal is, at present, a disease with increasing incidence. Nearly 60% of patients, coming to the physicians in the CR state they have a ?back-ache?. Besides the complications after the injury and inherent development disorders, also the unhealthy life style of the present population contributes to this fact. Already children and young people suffer of the disease of the spinal canal caused by overweight, lack of movement or on the contrary by excessive extent of unsuitable movement. The adult patients suffer from difficulties caused by the heavy physical labor or on the contrary by a sedentary job. In the last years, also the number of injuries has been increasing suffered by persons during the transport accidents or adrenalin sports. This disease deteriorates considerably the quality of life as it is accompanied by the uncomfortable pains and limitations. Vertebrogenous diseases represent one of the most important socially economic problems of present civilization as they are a frequent cause of the sick leave and subsequently also of the invalidity of economically active persons. The theoretical part of my bachelor thesis deals shortly with anatomy, functions and diseases of the spinal canal. Moreover I describe the principles of individual displaying methods applied for diagnostics of spinal canal diseases. In practical part of my thesis, I deal with the description of the equipment and with the individual displaying and therapeutic methods available at present. The main aim of this thesis is confirming or refuting the hypothesis that it is necessary to perform more displaying modalities for determining the diagnosis of the spinal canal disease. I succeeded to prove the hypothesis by processing the statistical data from the radio-diagnostic department of the Hospital of Písek, by means of calculations, creating the charts and diagrams.
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Hydrodynamika mozkomíšní tekutiny v páteřním kanálu
Kaczmarská, A. ; Vaněk, P. ; Maršík, František ; Převorovská, Světlana ; Otáhal, S. ; Otáhal, J.
In previous modelling study of the cerebrospinal fluid transportation we have shown that main source of the hydrodynamical resistance and compliance of the craniospinal system is cervical part of the spinal canal. The aim of our present study is the investigation of the influence of the cervical spine degenerative changes on the hydrodynamical parameters of the craniospinal system. The results obtained by using of the numerical model of the cerebrospinal fluid flow show the significant influence of the cervical spine degenerative changes on the hydrodynamics of this system.
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