Wired, wireless, and MR solutions for measuring cardiac outupt
Comprehensive array of noninvasive impedance cardiography recording and measurement tools
AcqKnowledge® offers a comprehensive array of noninvasive impedance cardiography (ICG) tools for recording parameters associated with virtually any kind of electrical bioimpedance (EBI) monitoring and bioimpedance analysis (BIA). Extracted measures can be displayed as new channels in the recording, or exported to an Excel spreadsheet or Journal file for further analysis. In addition to conventional BIOPAC® data acquisition hardware, record wirelessly with the BioNomadix® BN-NICO system.
Try ICG tools in the free AcqKnowledge Demo
See More...Extracted measures can be displayed as new channels in the recording, or exported to an Excel spreadsheet or Journal file for further analysis.
Automated dZ/dt Classifier and ICG Analysis Routines, Ensemble Averaging
Body Surface Area, Derive dZ/dt from Raw Z, Ideal Body Weight, Pre-ejection Period, VEPT
Hardware Bundles are complete solutions for the specified application. Choose your preferred platform and bundle, then click "Request Pricing" to request an estimate, add/remove items, or complete purchase. If you have questions about specific items, click through to the product web page for details and specifications, or contact your Local Sales contact.
Noninvasive BP
Wired | ICG: Impedance Cardiography/Cardiac Output
Stand-alone Solution | Continuous, beat-to-beat, blood pressure and pulse: Sys, Dia, MAP, PR.
MP36R System
Wired | ICG: Impedance Cardiography/Cardiac Output
MP36R with AcqKnowledge plus NICO sensor, lead set, disposable strip electrodes, & disposable general purpose electrodes
MP160 System
Wired | ICG: Impedance Cardiography/Cardiac Output
MP160 System with NICO and ECG amplifiers and disposable electrodes
MP160 System
Wired | ICG: Impedance Cardiography/Cardiac Output
MP160 with AcqKnowledge plus ECG & Electrical Bioimpedance Amps with disposable electrodes
Noninvasive BP
MP36R System
MP160 System
MP160 System
BioNomadix Logger
Wireless | ICG: Impedance Cardiography/Cardiac Output
BioNomadix Logger and one transmitter for wireless EMG setup, plus leads and disposable electrodes
MP160 System
Wireless | ICG: Impedance Cardiography/Cardiac Output
MP160 with AcqKnowledge plus BioNomadix wireless NICO & ECG with disposable electrodes
BioNomadix Logger
MP160 System
MP160 System
MRI | ICG: Impedance Cardiography/Cardiac Output
MP160 System with NICO amplifier and disposable electrodes for MRI
MP160 System
MP36R System
Animal | ICG: Impedance Cardiography/Cardiac Output
MP36R with AcqKnowledge plus NICO sensor, reusable 8 mm snap electrodes, & electrode lead adapter
MP160 System
Animal | ICG: Impedance Cardiography/Cardiac Output
MP160 System with NICO and ECG amplifiers, needle electrodes & impedance checker
MP36R System
MP160 System
Impedance Cardiography Parameters
AcqKnowledge® includes two primary methods for extracting impedance cardiography parameters (also known as thoracic electrical bioimpedance (TEB)):
Method 1: Automated dZ-dt Classifier and ICG Analysis Routines
dZ-dt Classifier – AcqKnowledge® automatically scores the dZ/dt waveform with event markers indicating appropriate points in the complex to derive additional measures. For a detailed demo, see the ICG dZ-dt Classifier Tutorial Video.
ICG Analysis – Following dZ-dt scoring, apply the automated ICG analysis routine to derive a wide array of impedance and hemodynamic measures, such as pre-ejection period, stroke volume, cardiac output, heart rate, R-R interval, and more. Individual measures can be toggled on or off, allowing a customized subset of measurement data to be included in the output.
Full list of measures extracted by ICG Analysis:
Acceleration Index (AI)
Cardiac Index (CI)
Cardiac Output (CO)
Heart Rate (HR)
Left Cardiac Work (LCW)
Left Cardiac Work Index (LCWI)
Left Ventricular Ejection Time (LVET)
Pre-ejection Period (PEP)
RR Interval (RR)
Stroke Index (SI)
Stroke Volume (SV)
Systemic Vascular Resistance (SVR) or Total Peripheral Resistance (TPR)
Systemic Vascular Resistance Index (SVRI)
Systolic Time Ratio (STR)
Thoracic Fluid Content (TFC)
Thoracic Fluid Index (TFI)
Velocity Index (VI)
Mean BP (requires additional signal)
Mean CVP (requires additional signal)
Mean PAP (requires additional signal)
Additional Impedance Cardiography tools for extracting advanced measures and cleaning data include:
Impedance Cardiography and Cardiac Output
Record and analyze impedance cardiography data Use automated ICG analysis to output key measures Use Ensemble Averaging to view the averaged dZ/dt signal AcqKnowledge offers More...
When used in conjunction with an occluding cuff, electrical bioimpedance measurements on limbs can assess arterial blood flow and venous thrombosis. To prevent venous outflow without More...
For bioimpedances measured across the thorax using the EBI100C, a small impedance change is observed with each inspiration and expiration. For respiration monitoring, electrodes are More...
Tissue Magnitude and Phase Modeling
The EBI100C measures tissue impedance magnitude and phase simultaneously at any of four operational frequencies (12.5, 25, 50 and 100kHz) for multi-frequency bioimpedance analysis (MFBIA). More...
Tissue Resistance and Reactance Measurement
Tissue resistance is mathematically described as the real part of the tissue impedance and tissue reactance is defined as the imaginary part of the tissue More...
ICG dZ dt Classifier
Ensemble average
AcqKnowledge Ensemble Average Feature
Estimated Cardiac Output from Blood Pressure
Focus Areas | AcqKnowledge Tutorial
EL-CHECK Electrode Impedance Checker
The NICO Smart Amplifier is specifically designed to measure thoracic impedance for performing noninvasive cardiac output measurements. The amplifier terminates in two connectors for impedance (Z) and its derivative (dZ), and has a 3 m cable that connects directly to an AMI100D Amplifier Input Module. Use with EL526 strip electrodes and CBL246 adapter or with EL500 […]
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BIOPAC’s comprehensive Introductory ECG Guide addresses fundamental to advanced concerns to optimize electrocardiography data recording and analysis. Topics include: ECG Complex; Electrical and Mechanical Sequence of a Heartbeat; Systole and Diastole; Configurations for Lead I, Lead II, Lead III, 6-lead ECG, 12-lead ECG, precordial leads; Ventricular Late Potentials (VLPs); ECG Measurement Tools; Automated Analysis Routines for extracting, […]
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