|
|
The use of technical means to assess the impact of rehabilitation for upper limb movement
Svozílková, Pavlína ; Hána, Karel (advisor) ; Jeřábek, Jaroslav (referee)
The goal of this thesis was determine whether we can to use an inertial system for measuring the activity of the upper limb signs of paresis in the rehabilitation of people after brain damage with a diverse range of upper limbs functional damage, and demonstrating the expected increase in this activity. One way to obtain objective information about the activity of the upper limb signs of paresis is the use of inertial systems. 21 people who went to therapy on the Department of Rehabilitation Medicine First Faculty of Medicine Charles University in Prague and General University Hospital in Prague were measured. Each of them suffered brain damage more than a year ago and also had impaired upper limb mobility. The behavior of the upper limb signs of paresis were evaluated from data obtained by inertial system and by Jebsen-Taylor test. Inertial units were located on the left and right wrist and left side at the waist. An inertial system measurement was carry out at home about 12 hours a day for 4 weeks, when the persons responsible for training specified exercises. Jebsen-Taylor test was conducted at the beginning of the study, as the initial measurement, and after 4 weeks, as the output measurement. The obtained data were statistically evaluated by Wilcoxon paired test. By comparing the average...
|
|
|
Use of spectral analysis for the treatment of paroxysmal or persistent atrial fibrillation
Veselá, Jana ; Rosina, Jozef (advisor) ; Hána, Karel (referee) ; Vančura, Vlastimil (referee)
Introduction: Atrial fibrillation is most common sustained cardiac arrhythmia characterized by rapid, unorganized atrial electrical activation. Its incidence in- creases with age and comorbidities. The presence of AF has been demonstrated to be independently associated with increased morbidity and mortality. The tre- atment of AF remains challenging. The aim of the present work is to use the analysis of heart rate variability in prediction of AF occurrence, and during tre- atment procedures of AF for better understanding of physiology of AF. Results of time-, frequency- and non-linear analyses were used in two present studies. The first study was study of patients undergoing hybrid ablation of atrial fib- rillation. Hybrid ablation consists of surgical epicardial thoracoscopic procedure, followed by electrophysiological catheter ablation. The second part is done 1-3 months after the surgical part. The aim was to establish the coincidental damage of ganglionated plex during the first, surgical procedure, using the analysis of heart rate variability during the electrophysiological procedure. The aim of the second study was the prediction of post-operative AF in pa- tients undergoing open-chest cardiac surgery, using the pre-operative heart rate variability analysis. Methods: Study 1: Patients with...
|
|
|
The use of technical means to assess the impact of rehabilitation for upper limb movement
Svozílková, Pavlína ; Hána, Karel (advisor) ; Jeřábek, Jaroslav (referee)
The goal of this thesis was determine whether we can to use an inertial system for measuring the activity of the upper limb signs of paresis in the rehabilitation of people after brain damage with a diverse range of upper limbs functional damage, and demonstrating the expected increase in this activity. One way to obtain objective information about the activity of the upper limb signs of paresis is the use of inertial systems. 21 people who went to therapy on the Department of Rehabilitation Medicine First Faculty of Medicine Charles University in Prague and General University Hospital in Prague were measured. Each of them suffered brain damage more than a year ago and also had impaired upper limb mobility. The behavior of the upper limb signs of paresis were evaluated from data obtained by inertial system and by Jebsen-Taylor test. Inertial units were located on the left and right wrist and left side at the waist. An inertial system measurement was carry out at home about 12 hours a day for 4 weeks, when the persons responsible for training specified exercises. Jebsen-Taylor test was conducted at the beginning of the study, as the initial measurement, and after 4 weeks, as the output measurement. The obtained data were statistically evaluated by Wilcoxon paired test. By comparing the average...
|
|
|
System of Audiovisual Stimulation with EEG Biological Feedback
Fiřt, David ; Hána, Karel (advisor) ; Koza, Zdeněk (referee)
In thesis be described to make-up apparatus audiovisual stimulation with EEG backward structure from readily available ready component that the are EEG amplifier, AD inverter, inverter USB/UART, apparatus for AVS and personal computer. Next is here describe programme specially written for this application in language Delphi that the implements counting values EEG signal from AD inverter, analysis enter data EEG by the help of Fourier transformation inclusive graphic presentation and by return works cerebral activity by the help of apparatus for audiovisual stimulation equipped technology AudioStrobe.
|
|
| |
|
|
Ohodnocení chyby objemové rekonstrukce biologických vzorků z konfokálních obrazů
Čapek, Martin ; Janáček, Jiří ; Kubínová, Lucie ; Smrčka, P. ; Hána, K.
We performed both volume reconstructions using images captured by the USB microscope and images captured by the confocal microscope. We manually marked important corresponding structures in both reconstructed data sets, and computed distances between corresponding structures, assuming that structures in the reconstruction from USB microscope data are without deformations. According to our expectations, the main errors of high-resolution volume reconstruction (from confocal data) are in the direction of physical cutting (vary in units of millimeters) and in the direction perpendicular to cutting due to off-cut (vary in tenths of millimeters)
|
|
|
Přístupy k visualizaci obrazů 3D struktur získaných konfokálním mikroskopem
Čapek, Martin ; Janáček, Jiří ; Kubínová, Lucie ; Hána, K. ; Smrčka, P.
Laser scanning confocal microscopes are capable to focus a laser beam into a layer of an investigated biological specimen, and by the gradual scanning of this layer they acquire an optical section. By consecutive scanning of all preset layers of the specimen we obtain a stack of optical sections, i.e. a 3D digital representation of the specimen. In the presented study we focus on volume reconstruction of large biological tissues, i.e. tissues greater than field of view and/or thicker than maximal depth of scanning of a confocal microscope. As a result of volume reconstruction we obtain a high resolution 3D image of the biological specimen. 3D visualization is offered either by our Rapid3D software package suited for three-dimensional reconstruction and visualization of biomedical images, or Ellipse modular software package devoted to biological image processing (created by ViDiTo company, Slovakia)
|
|
| |
|
|
Nástroje pro trojrozměrnou vizualizaci struktur v biologii
Čapek, Martin ; Janáček, Jiří ; Kubínová, Lucie ; Smrčka, P. ; Hána, K.
By consecutive scanning of layers of the biological specimen by a confocal microscope we obtain a stack of optical sections, i.e. a 3D digital representation of the specimen. Our research focuses, on volume reconstruction of large biological tissues, i.e. tissues greater than field of view and/or thicker than maximal depth of scanning of the confocal microscope. As a result of volume reconstruction we obtain a high resolution 3D image of the biological specimen. In order to visualize 3D objects on 2D computer screens we developed several tools including visualization by a specialized VolumePro board and by using consumer graphics cards supporting DirectX and OpenGL
|
|
|
Objemová rekonstrukce velkých biologických tkáňových vzorků
Čapek, Martin ; Janáček, Jiří ; Kubínová, Lucie ; Smrčka, P. ; Hána, K.
Volume reconstruction is a technique for visualization of a biological specimen which is greater than the field of view of a used optical instrument - a confocal laser scanning microscope in our case. The first step of volume reconstruction is acquisition of sets of digital volume images (spatial tiles which overlap) from all studied physical slices. The second step is horizontal merging of overlapping spatial tiles of the same physical slice (mosaicking). The third reconstruction step is vertical merging of digital volumes of successive physical slices of the specimen. The resulting large digital volumes are visualized using a VolumePro hardware board that offers real-time 3D volume rendering. In this paper we show a reconstruction of a chick embryonic kidney
|
guest ::
RSS feed.