BIOPAC® Systems, Inc. Logo

H23 Signal Averaging ECG

The Biopac Student Lab system can be used to amplify and enhance the ECG signal using a clinical diagnosis tool referred to as the Signal Averaged ECG. The technique allows identification of small electrical currents, called ventricular (ven-TRIK’u-ler) late potentials. This test is used to help identify people at risk of a dangerous rhythm in the heart’s lower (pumping) chambers. This is called ventricular arrhythmia (ah-RITH’me-ah) and it can lead to sudden cardiac death.

For years, cardiologists examined paper charts of ECG signals to create an averaged ECG complex. They took each individual cardiac cycle, measured each part of the complex with a ruler, wrote down each value, and calculated the means to derive an averaged ECG complex. This task took a great deal of time and patience. When the need arose to analyze two or more different scenarios (e.g., baselineresponse), the task had to be performed even more carefully for accurate comparison of the ECGs.

The BSL PRO software has a powerful averaging feature that automatically derives an averaged signal from a specific number of cycles (averaging is found in the Find Peak dialogue). It also can easily compare two, three, or more averaged ECG signals.

Experimental Objectives

  1. Optional: Record multiple segments of ECG data under different conditions.
  2. Provide a Signal Averaged ECG for each of the recording segments.
  3. Compare the Signal Averaged ECG data for different conditions.

Tasks Performed by the Student

Subject will:

Videos

Biopac Student Lab Student Download

Student Prep & Distance Learning

Click the link(s) below for sample data and/or lesson procedure video(s), BSL PRO Lesson procedures (PDF) for human lessons*, and graph template files (*.gtl) for BSL PRO Lessons. If more than one .gtl is available, download the .gtl with the _suffix to match BSL version and hardware.

Lesson Hardware

This lesson requires a Biopac Student Lab (BSL) System and the following hardware. If your BSL System does not include all hardware items, expand your system by selecting required items below. For more details, review the Lesson: L# BSL Lessons - see the Lab Manual or launch BSL; A# and H# BSL PRO Lessons, click the PDF link above to review full setup, recording, and analysis procedures.

ItemNameCart
ELPADAbrasive Pads 10/pkAdd to Cart
GEL1Electrode gel 50 gAdd to Cart
SS2LBLead set, shielded, BSLAdd to Cart
EL503Disp. Gen-purp electrode 100/pkAdd to Cart
Spotlight On
free BIOPAC webinar

Collect Human Blood Pressure during MRI Experiments

How to measure continuous, beat-by-beat, noninvasive blood pressure (NIBP) on subjects in the MRI … this on-demand training covers theory of operation and system validation, how to set it up on a subject, how to collect great data, and how to synchronize NIBP data with other physiological signals.

On Demand—Wach Now!

Register Now
Latest News

Electrocardiography Guide Now Available

BIOPAC’s just released 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 […]

New Citations | Twinkle, Twinkle, Little Star, Muscles & Computer Mice

Recent Studies using BIOPACs MP-Series (MP160, MP150) data recorders, ECG Amplifiers, and BioNomadix Wireless recorders: Singing style to infants Mothers around the world sing to infants, presumably to regulate their mood and arousal. Lullabies and playsongs differ stylistically and have distinctive goals. Mothers sing lullabies to soothe and calm infants, and playsongs to engage and […]

Read All
Request a Demonstration
Request a Demonstration