Related Experiment Video
Updated: Aug 16, 2026

Cardiac Pressure-Volume Loop Analysis Using Conductance Catheters in Mice
Published on: September 17, 2015
[Impedance cardiography--non-invasive measurement of central hemodynamic data]
J R Petersen1, B V Jensen, F Olsen
1Kardiologisk afdeling Y, Bispebjerg Hospital, København.
Abstract:
The theory, method and apparatus behind a new computer technology for transthoracic electrical bioimpedance are described. Measurements and calculations of changes in the electrical conductivity of the thoracic segment during systolic upstroke provides the basis for non-invasive determination of stroke volume and cardiac output. Bioimpedance further offers a sensitive indicator of the content of thoracic fluid. Reports comparing measurements of cardiac output in various clinical conditions by bioimpedance versus invasive methods in general show good correlation. The field of applications and limitations of bioimpedance are described. Measurements are reproducible and the method can also be used in evaluating the cardiodynamic exercise response.
Related Concept Videos
Pulse rhythm
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...
Bode Plots Construction
Electrocardiogram
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and the T...
Imaging Studies for Cardiovascular System I:Echocardiography
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...
Cardiac Catheterization II: Right Heart Catheterization

