Article list

The measurement and 3D imaging method of high-resolution X-ray microtomography – microCT developed at the SAV Measurement Institute has been successfully used in forensic science. In the close cooperation of ten scientific, university and criminological workplaces, the influence of the action of concentrated acid on the loss of dental mass, various selected dental fillings and…

Investigators: Jana Švehlíková, Anna Přibilová, Ján Zelinka, Beáta Ondrušová, Katarína Kromková, Peter Hlivák, Robert Hatala, Milan Tyšler The input data for localization of the source of premature ventricular activity (PKA) were averaged ECG signals obtained from a 5-20 minute recording of multi-lead ECG measured in 14 patients diagnosed with PKA. During its standard processing, the…

Investigators: Jiří PŘIBIL, Anna PŘIBILOVÁ, Ivan FROLLO,  IMS SAS   Our research is focused in analyze and monitoring of a mental and physiological state of an examined person during scanning in the magnetic resonance imaging (MRI) device working with weak magnetic field up to 0.2 T. Our final aim is to detect and suppress negative…

Investigators: Roman Rosipal, Zuzana Rošťáková The detection and changes of oscillatory rhythms in the EEG signal are important for understanding the processes taking place in the human brain during experiments aimed at modulating brain activity, as well as for the proper functioning of the brain-computer interface. In [1], we created a set of simulated EEG…

Investigators: M. Škrátek, J. Maňka   Measurement of magnetic quantities with high sensitivity finds application in various areas of scientific research. In our research, in cooperation with other scientific institutions, we focused on the use of nanoparticles in biomedicine and on two issues in the field of materials research. Ultra-small superparamagnetic iron oxide nanoparticles in…

Investigators: Beáta Ondrušová, Jana Švehlíková, Ján Zelinka, Milan Tyšler, Peter Tiňo   In the study, we proposed a methodology for determining the significance of signals from individual electrodes of multichannel ECG measurement for solving the inverse problem to locate the source of the ventricular extrasystole. This method is based on the singular decomposition of the…

Investigators: Martina Chvosteková, Anna Krakovská, Jozef Jakubík   Identifying the causal link between processes in a complex system is one of the fundamental challenges in the natural and social sciences. The first principle of Granger causality as the basic quantitative analysis of causality is the chronological order of cause and effect. The effect of the…

Investigator: Pavol Szomolányi Many factors provided by contrast media magnetic resonance imaging (MRI) influence is increasing in NMR signal strength. The effect on signal strength of different concentrations of gadolinium based contract agents and dilution of gadolinium-based macrocyclic contrast agents (GBCA) has been evaluated. This phantom study examined gadobutrol, gadoteridol and gadoterate in human plasma…

High-resolution X-ray microtomography measurement methods have been used in three-dimensional imaging in materials research, biology and paleontology. In non-destructive imaging and characterization of properties of new materials and technologies of additive production using 3D printing, microtomography was used in cooperation with FCFT STU to investigate the repeatability and reliability of 3D printing in additive production…

Investigators: M. Škrátek, A. Dvurečenskij, A. Cigáň, J. Maňka Biogenic iron is found in all biological systems. Recently, ultra-small superparamagnetic iron oxide nanoparticles have also been used in biomedicine, which, as drug carriers, enable targeted dosing by the action of a magnetic field. The stability of these nanoparticles depends on the cellular environment (chemical composition,…