Table of Contents

The Image-Based 12-lead Diagnostic ECG Toolbar

This page describes the various controls available when viewing image-based 12-lead Diagnostic ECGs.

The toolbar for these ECGs is shown in Figure 1:

The 12-Lead Image Based ECG Toolbar
Fig. 1: The toolbar for image-based 12-lead Diagnostic ECG samples.

Caliper Controls

The following toolbar buttons toggle the activation of the calipers in the ECG display.

The Time Caliper Button

The Toggle Time Caliper Button button toggles the time caliper control activation in the ECG display.

When the time caliper is active, the button changes to an activated state Active Toggle Time Caliper Button

The Voltage Caliper Button

The Toggle Voltage Caliper Button button toggles the voltage caliper control activation in the ECG display.

When the voltage caliper is active, the button changes to an activated state Active Voltage Caliper Button

Information Controls

The following toolbar buttons control the display of patient and ECG information.

The Patient Info Button

The Show Patient Information Button button displays patient demographics (age, sex, height, and weight) and clinical history in a popup window if this information is available for the ECG. Use your best clinical judgment when viewing this data as with actual clinical recordings. For example, if the patient's height is 17 inches for a 56-year-old patient, the height measurement was probably transposed from 71 inches. The button will be disabled if demographics and clinical history are not available.

If patient information is not available for the sample, the button will be disabled and appear as follows: Disabled Show Patient Information Button.

The ECG Info Button

The Show ECG Information Button button displays data about the ECG, including Ventricular Rate, PR interval, QRS width, and more. These data, if available, are automatically extracted from the ECG and are not guaranteed to be verified. Use your best clinical judgment when viewing this data, as with actual clinical recordings. This button is only available on the Results page.

If ECG information is not available for the sample, the button will be disabled and appear as follows: Disabled Show ECG Information Button.

ECG Display Controls

The Zoom Button

The Zoom Image Button button enlarges the ECG to fill the current window. To move the zoomed image around, click and drag the image.

Various controls are contained in the Zoom Image Toolbar located at the bottom of the page. The Zoom Image Toolbar looks like The Image Zoom Toolbar.

The individual controls in the toolbar are as follows:

  • Increase Zoom Button - Increase the zoom factor.
    Decrease Zoom Button - Decrease the zoom factor.
    Reset Zoom Button - Reset the zoom to the initial setting.
    Show Full Screen Button - Show the ECG as full screen.

    • The zoom window can be closed by clicking on the Close the Zoom Window icon in the upper right corner of the windows. The window can also be closed by pressing the Esc key.

    There are also keyboard controls available while viewing a zoomed-in ECG. These are as follows:

  • Esc - Exit full screen or close the viewer or exit modal mode or stop play.
  • Tab - Switch the focus state on the buttons in the viewer.
  • Enter - Trigger the click event handler on the button.
  • ↑ - Zoom in the image.
  • ↓ - Zoom out the image.
  • Ctrl + 0 - Zoom out to initial size.
  • Ctrl + 1 - Zoom in to natural size.

    • Help Controls

    The following toolbar buttons control the display of help information.

    The Tour Button

    The Tour Button provides additional help on the individual controls on the page via popup windows attached to the individual controls on the page. To view the user interface tour, select Show Tour Button from the toolbar and then use the controls in the popups that appear to run through the tour.

    The Help Button

    The Help Button displays this User Manual page in a popup window. To view this help in a popup window, select Show Help Button from the toolbar.