Patent ID: 6694178
Filing Date: 2004-02-17
Classification: A61B

Abstract:
Method for representing and monitoring cyclical function parameters of electrocardiographic data, which are derived from electronic measuring signals, the data being combined to form a basic data model and being converted into a graphical portrait which is constructed in a three-dimensional topological model, comprising:fixing an analysis cycle by determining the temporal spacing of at least two repeating significant variables, digitizing the electrocardiographic data acquired during the analysis cycle, feeding the digitized data to a storage unit, assigning a color code and brightness value to the stored digitized data wherein the assignment of the color codes and brightness values are performed according to degree of deviation of the stored digitized data from empirically determined reference data, determining space coordinates from the stored digitized data as surface interpolation points, interpolating the surface interpolation points to generate pixels between the surface interpolation points and generating an essentially closed surface from the pixels, and feeding the essentially closed surface to an evaluation or output device, calculating an autocorrelation function of analysis cycles to be evaluated, comparing the stored digitized data with empirically determined reference data and selecting the analysis cycle to be evaluated in accordance with the comparison, leading the acquired data of an analysis cycle through a high-pass filter, digitizing the filtered acquired data and subtracting the filtered acquired data from unfiltered acquired data, grouping the subtracted data according to a value of the subtracted data, performing a reference measurement to determine a sequence of the group subtracted data, storing a sequence of the for group subtracted data for each physiological system and applying the stored sequence of the group subtracted data to subsequent analysis cycles in order to determine variations in the electrocardiographic data.