[Evaluation of linear distortions in rheography]

Methods permitting to estimate parameters of hemodynamics through bioimpedance measurements have gained ground in study and diagnosis of the cardiovascular system. The error in bioimpedance measurement depends considerably on dynamic characteristics of the measuring devices being employed. The dynamic characteristics can be investigated by the method evaluating linear distortions. A relation can be established between these characteristics and errors of measuring major informative parameters of a rheographic signal.