title: [Central hemodynamic indices studied by use of a tetrapolar variant of integral rheography of the human body].
abstract: Integral rheography is conducted by M. I. Tishchenko's method by means of bipolar rheographs which do not ensure accurate reading of the values which form the formula for determining the stroke volume. A modification of the method is suggested with the use of a tetrapolar diagram of impedance measurement and a technically perfect PPG-202 device with a widened range of measurement of the resistance of the object being studied, which ensures accurate impedance reading and stable calibration. To study the possibilities of the method, comparative investigations by means of the echocardiography and thermodilution methods and by means of the bipolar variant of integral rheography were conducted. The results of the investigations bear evidence that the method described is sufficiently accurate for studying central hemodynamics in the clinic and in the prehospital stage of management of the patients.
mesh_terms: D000328:Adult; D000368:Aged; D002318:Cardiovascular Diseases / Q000175:diagnosis; D003327:Coronary Disease / Q000175:diagnosis; D004452:Echocardiography; D004582:Electronics, Medical / Q000295:instrumentation; D006439:Hemodynamics; D006801:Humans; D008875:Middle Aged; D010993:Plethysmography, Whole Body / Q000295:instrumentation / Q000379:methods*; D011674:Pulse; D013815:Thermodilution
vernacular_title: Issledovanie pokazateleĭ tsentral'noĭ gemodinamiki s pomoshch'iu tetrapoliarnogo varianta integral'noĭ reografii tela cheloveka.