ECGScan

 

ECGScan Details

Digital conversion of paper ECGs into waveforms.

ECGScan software, via a semiautomatic approach, allows the conversion of an image of paper ECG (obtained by scanning the paper ECG) into digital format and the exportation of the newly digitized ECG file in AMPS XML or FDA HL7 XML formats.

Despite a technology that permits storage of ECG waveforms in digital format since many years, a vast majority of ECG analyses is still performed on paper printouts, either directly on paper copies or with the support of on-screen calipers methods applied to the scanned printout converted to digital image format. And today still exist several large databases collected on paper ECGs that should be converted to a digital format to be efficiently archived.

With the use of ECGScan, paper ECG will be converted into true digital ECGs and it will then be possible to process these ECGs as if they were originally acquired in digital format.
The only limitation applies to the measuring protocol, depending on the layout of the paper ECG it may not be possible to derive Representative Beats (Median) and thus the ECG annotations will have to be placed on the Rhythm strip.

ECGScan can handle ECG images with medium resolution (300 or 600 DPI are suggested), both grayscale and color, stored in the major graphical formats such as JPG, GIF, TIFF and PNG.
It allows to detect one lead at a time, but also simultaneous waveform detection based on predetermined model layout of paper ECG printouts (eg. 3x4 with long lead II at the bottom).
ECGScan allows to define an area of "Time Synchronization", an area on the image in which "time is preserved". ECGScan will automatically compute the Lead Offsets during the digitization.

You can review the paper ECGScan: a method for conversion of paper electrocardiographic printouts to digital electrocardiographic files on the Publications page of our website, describing the second version of ECGScan software.

ECGScan More

Academic research will also indirectly benefit from these efforts; indeed there still exist today many large databases collected on paper ECGs that must be converted to a digital format to be efficiently archived.

  • ECGScan can handle ECG images scanned with standard scanners and medium resolution (200 DPI or higher) with at least a 8bit grayscale color depth.
  • Detection of underlying grid accounting and correcting for both tilt (angle) and distortion effects.
  • Lead-based detection of each ECG waveform.
  • Simultaneous waveform detection options based on predetermined model typical of paper ECG printouts (e.g. 3x4 with long lead II at the bottom).
  • Digitized ECG with user-defined sampling-rate and amplitude resolution.
  • Output in XML standard requested by FDA.
  • Ability to define the Area of Time Synchronization, an area on the image in which “time is preserved”. ECGScan will automatically compute the Lead Offsets during the digitization.

New to AMPS ECGScan 3.0, the recently released version, is the addition of several new image processing tools that both speed up the process of digitalization and enhance the accuracy of the waveform detection.

ECGScan Demo

ECGScan 3 (demo version)

Version:

3.0.1

Date:

July, 2007

Size:

19.0 MB

Download:

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AMPS ECGScan is a tool used to convert paper ECG images to digital format. ECGScan accepts as input scanned paper ECG images (several graphical formats are supported such as JPG, GIF and PNG), and through the application of several advanced wave detection algorithms, produces digitized ECGs in either AMPS XML or FDA HL7 XML formats, the latter being the standard supported by US FDA.

A User Manual is included in the setup package, automatically copied in the installation folder.

Demo versions of all AMPS software are fully functional only with the example demo data files included in the setup package.

ECGScan Learn More

Clicking here below you can view a set of slides illustrating ECGScan software.

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ECGScan Training Video

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