Theoretical principles of cardiometry

Biophysical Phenomena in Blood Flow System in the Process of Indirect Arterial Pressure Measurement

“…They were unaware of the degree of distortion during the filtration process and its difference from the real processes. Our research showed that these distortions are significant and reach 25% [5]. This situation could be improved but the received distorted ECG have for a long time served for creation of cardiological standards in diagnostics.…”

“…Deviation in extreme points amplitude by the falling wave is characteristic for interference [5]. This phenomenon is presented on the second derivative (see Fig.…”

Phase characteristics of rheograms. Original classification of phase-related changes of Rheos

“…In combination with the heart cycle phase analysis and the synchronously recorded ECG of the aorta it is possible to make diagnostics in the most accurate way and identify primary causes of the changes [6][7][8][9][10].…”

“…Therefore, all the existing methods of the Rheo interpretation, including the pulse contour analysis, have not found their wide application. CARDIOMETRY considers a rheogram from the point of view of hemodynamic phase-related processes and offers a new approach to the cardiovascular system diagnostics [6][7][8][9].…”

“…The experience accumulated when using the Cardiocode device allows describing the phase structure of a rheogram and creating a fundamentally new classification of the Rheo phase-related changes [6][7][8]. This original classification of the phase-related changes in rheograms is presented in Fig.1 below.…”