Viewer Light


Viewer Light Details

Displaying and validating XML FDA Ecg files

The Viewer Light is a simple Viewer for resting ECGs in FDA HL7 XML format. This AMPS software provides a way to display and validate ECG files in the format supported by the US FDA (aECG FDA HL7 XML, v. 1).

The Viewer Light is based on the FDAEcg Suite architecture, the comprehensive AMPS tool for ECGs in HL7 XML format. Both applications are capable of rendering/displaying HL7 annotated ECG files. The software supports the display of both Rhythm strip (raw data) and Representative Beats (medians) waveforms.

The Viewer Light can process a single ECG at a time and has a limited set of functionalities (see table below), while the FDAEcg Suite has an extensive set of qualitative and quantitative tools ranging from ECG quality scoring to different HL7 XML validation levels.

History: As of January 20th, 2004 the Annotated ECG (aECG) XML Waveform Standard was finalized and formally adopted by the Health Level 7 (HL7) standards organization. HL7's adoption of the aECG XML Waveform Standard enabled submission of digital aECGs to establish the cardiac safety of new drugs. The final aECG Waveform Standard was authored through an ad hoc group consisting of representatives from sponsor organizations, ECG core laboratories, academic institutions and medical device companies. Dr. Badilini was part of the panel and received an Award from the FDA for his contribution.

Viewer Light Plugins

Viewer Light FDAEcg Suite Notes
Against Schema Validation Yes Yes This validation checks if all used elements conform to the XML syntax rules and to the HL7 Schema
IG Level Validation No Yes This validation checks if all used elements conform to the XML syntax rules and to the HL7 Schema. The IG (and this validator) presents information about the aECG standard independently of any particular use.
FDA Warehouse Validation No Yes This level is specifically aimed to address all issues related with the submission of the aECG files into the FDA warehouse, but that are NOT specified at the level of the schema (or even at the level of the IG).
Folder-based validation No Yes Validation can be computed on a single file or on an entire folder in a single step.
Folder-based file management No Yes The user can open the whole content browsing from an ECG to another without the need of additional open sessions.
The application gives the user the possibility to browse between ECGs and enrolled subjects of the same study, with identical trial code.
Enhanced display options Yes Yes Advanced and totally customizable ECG display. Possibility of changing lead organization, grid appearance and dimensions, zoom…
Toggle on/off annotations Yes Yes It is possible to turn on and off the display of annotations by type.
ECG Scoring No Yes ECGs can be scored using pre-defined or imported plug-ins. Once scored the ECGs can be visualized and sorted based on the different scores, and reviewed.
The Suite comes with an open user interface whereby it will be possible to add (plug-in) criteria for new metrics.

Viewer Light Demo

Viewer Light   (demo version)




January, 2009


7.57 MB



The Viewer Light is the product that allows to display annotated ECGs saved in the FDA HL7 XML format. The Viewer Light is a spin-off of the FDAEcg Suite, the comprehensive AMPS tool for the HL7 XML formatted ECGs. The Light version has a number of basic functionalities, allowing to view one XML file at a time and only includes the HL7 schema validation, a verification that the XML document is a valid XML document and meets the requirements of the HL7 schema.

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.

Viewer Light Learn More

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