Vladimir Kasik

User Interactive Biomedical Data Web Services Application

This paper deals with the usage possibilities of interactive web services for visualizing biomedical data measured with the possibility of complex mathematical algorithms for data processing. This possibility of data processing and evaluation is implemented using FPGA technology and link to existing databases and Web services. Interconnection of these technologies allows a large spectrum of users to quick access to evaluated biomedical data. This article discusses the possible topological solutions and implementation of that system.

Cloud computing environments for biomedical data services

The goal of the project we describe in this paper was the cloud computer environment establishment for biomedical data processing services using a security access. The relevant cloud application for user interactive interaction with biomedical data were realized on .NET Framework technology platform by the help of rapid calculating by FPGA technology. Interconnection of these technologies allows a large spectrum of users to quick access to pre-evaluated biomedical data. This article discusses the possible topological solutions and implementation of that system.

Biomedical Distributed Signal Processing and Analysis

The paper deal about the electrophysiology distributed data processing and analysis. The aim of the work was the distance computer environment for biomedical data processing services with effective data visualizing. The system combine end user interactive interaction with biomedical data was realized with the use of rapid calculating by FPGA technology. Combining of these technologies allows a vide range spectrum of users to quick access to proceed biomedical data. This article involved the possible topological proposal and implementation of that biomedical distributed signal processing system.

Advanced CT and MR image processing with FPGA

The CT and MRI image processing is a task with high requirement of computation time and computation speed. The calculation process in the most cases consists of various steps that are inherently parallel. There is opportunity to use parallel programming implemented in standard computer with more than one core. The more efficient way is to use real parallel signal processing. The only hardware that allows parallel data processing is FPGA. This article deals about this possibility. It is shown in the application on real problem in the image processing field. The first there is described the methodology of image processing in the application on CT (MRI) images of the head. The task is to count the ratio of intracranial fluid in the skull. It is important for child neurology diagnostic. The second part deals about the FPGA and its contribution to solving this task in the real parallel hardware system.

User adaptive system for data management in home care maintenance systems

User adaptive systems for data management becoming more important in the home security and maintenance systems. There does exist plenty of monitoring systems with relevant outputs without right driven information between user and maintenance system. Especially the real time biotelemetry system base on vital function monitoring and first-aid treatment are the main focuses for user adaptation. The goal of this work is design and implementation of such kind of maintenance system providing information by user adaptive system for protection and saving haleness and human life. System design consists from hardware implementation of the sensing and transmission part and from logical structure by software implementation with user adaptation.

GPS Synchronisation for FPGA Devices

This article deals with methods research for synchronization pulses utilization provided by some GPS units for measurement synchronization. Initially there are problems of GPS described. Further there are drawn out realized prototypes of measurement systems based on microcontrollers where is expected milliseconds measurement accuracy followed by description GPS synchronized time source implementation in logic gate arrays (FPGA), which allows accurate measurement of microseconds and better. This article describes the theoretical premises and selected measured properties of realized solutions. In conclusion there are prepared experiments described which should be realized during research of this issue.

Security and Reliability of Data Transmissions in Biotelemetric System

Secure and reliable data transmissions are of vial importance in today’s biotelemetric systems. Particularity of biotelemetric data puts special requirements on real biotelemetric system regarding data confidentiality, transport channel reliability, transport latency and latency jitter. This article describes some of conclusions acquired in development of real biotelemetric system using off the shelf embedded hardware technology, namely ARM microcontrollers, FRAM memory and dedicated ZigBee chipsets with emphasis on reliability and security of data transfer. Described biotelemetric system is partitioned into logical parts that communicate using custom data protocols. Devices participating in biotelemetric system use Zig- Bee and Ethernet networks as underlying structure for secure and reliable data communication.

Bio-inspired genetic algorithms on FPGA evolvable hardware

The results presented in this article introduce the possibility of software processing by image data from CT and MRI in clinical practice. It is important to work with the most accurate data in the diagnosis and further monitoring of the patient. Especially in case of the birth defects or post-traumatic conditions of head called Hydrocephalus, it is necessary to work with this data. A production increase of the cerebrospinal fluid, called cerebrospinal fluid (CSF), causes bring intracranial pressure up. The oppression of the brain tissue has resulted of this procedure. The determination of CSF ratio to the skull in medical practice is used to improve diagnosis and monitoring before and after surgery in patients with Hydrocephalus diagnosed. Software was implemented in Matlab2006b using Image processing Toolbox. Next, the article also describes the design of hardware solutions to these methods of real-time image processing using FPGA programmable logic and genetic algorithm.

Heterogeneous Interconnection of the QNX Systems and PLC in Distributed Control Systems

Abstract In the following article the project of solution of distributed control system is described in which the operating system QNX in the connection with industrial bus CAN and industrial controllers PLC is used. Two ways of control system project are discussed there. The first one makes use of industrial computers of the PC type and industrial buses with intelligent sensors and actuators, the second project includes in this network also the industrial controllers PLC. With the interconnection of both possibilities we obtain the third solution which provides the advantages of both previous ones what is the high computing capacity of industrial computer and the capability of programmable controller to work in real time.

Segmentation of Vascular Calcifications and Statistical Analysis of Calcium Score

Assessment of blood vessels is current task in the field of clinical angiography. Calcification spots are usually observable well from native CT angiography records nevertheless, it is absence of methods precisely calculating calcium score (CS) serving as indicator of blood vessel deterioration by calcification process. The paper deals with the segmentation method for segmentation, extraction and differentiation of vascular calcifications based on the multilevel Otsu thresholding. The method generates mathematical model of physiological and calcification part of blood vessels and, it consequently allows for CS calculation as calcified blood vessel to physiological ratio. We performed analysis of blood vessels modeling and CS calculation on the base of wide dataset 90 patient’s records. We compared our CS results with three independent clinical experts. On the base of this comparative analysis, we propose estimated intervals for CS serving for objective analysis of this vascular parameter in the dependence of a calcification level. The main clinically applicable result is SW VesselsCalc application for complex analysis of blood vessels, modeling of calcification areas and calculation of calcium score.