Cardiac Output Volume Time Integral Calculator

This calculator estimates cardiac output using the volume time integral method from echocardiography. It is useful for assessing cardiac function in various clinical conditions.

Input Parameters

Calculation Results

Calculation Formula

Cardiac Output (CO) = Stroke Volume (SV) × Heart Rate (HR)

Where:
CO = Cardiac Output (L/min)
SV = Stroke Volume (mL/beat)
HR = Heart Rate (beats/min)

Cardiac Output Volume Time Integral Calculator Calculator Usage Guide

Learn how to use the Cardiac Output Volume Time Integral Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the Stroke Volume (SV) in milliliters (mL). This is the volume of blood ejected by the left ventricle with each heartbeat.
  2. Enter the Heart Rate (HR) in beats per minute (bpm). This is the number of heartbeats per minute.
  3. Click the Calculate button to compute the Cardiac Output (CO).
  4. The result will be displayed in liters per minute (L/min).

Understanding the Formula

The calculator uses the following formula to estimate cardiac output:

Cardiac Output (CO) = Stroke Volume (SV) × Heart Rate (HR)

Where:

  • CO is the cardiac output in liters per minute.
  • SV is the stroke volume in milliliters per beat.
  • HR is the heart rate in beats per minute.

Practical Applications

This calculator is particularly useful in clinical settings for:

  • Assessing cardiac function in patients with heart failure.
  • Evaluating the effectiveness of treatments that affect heart rate or contractility.
  • Monitoring patients during anesthesia and surgery.

Limitations

It is important to note that this calculator provides an estimate of cardiac output based on stroke volume and heart rate. It may not be accurate in all clinical situations, especially in patients with significant valve disease or arrhythmias. Always consult with a healthcare professional for a comprehensive assessment of cardiac function.