Directed Graph Mapping

A diagnostic software framework to - automatically - determine the source of a given arrhythmia. Using network theory on cardiac excitation, DGM is capable of detecting reentry - macro, localized and functional - as well as focal activity.


DGM is continually developed by our research group to assist electrophysiologists in Macro Reentry Atrial Tachycardia analysis. The user-friendly interface enables effortless loading of clinical maps with a single click, unveiling optimal ablation line suggestions.

Open to collaboration and analysis of data. We aspire to refine DGM's capabilities for potential integration into clinical workflows.


DGM is a versatile software package capable of handling diverse measuring systems. With its modular structure, DGM provides the flexibility for users to construct their unique pipelines for analyzing clinical, experimental and in-silico data.

Please check our research page to discover the range of studies already conducted with DGM.

mapping systems

Our mission is to advance ablation therapy. Therefore, we are working towards embedding DGM in current mapping systems for direct patient benefit, for the analysis of Macro Reentry Atrial Tachycardia. We welcome your interest and invite you to contact us to explore collaboration opportunities at any stage of development.

Example results of parsing, processing and visualization
of clinical and simulated data using the DGM framework

DGM framework

A modular software framework aimed at simplifying the analysis of arrhythmias. Build your own custom pipeline from parsing of exported data of known mapping systems to a final 3D visualization of the calculated results. Or use default functions for a quick first analysis. Below are some of the key features of each module.

Data parser

  • Rhythmia
  • OpenCARP
  • DGM format

Signal processing

  • LAT annotation
  • Signal filtering
  • Cross-correlation
  • Phase mapping

Graph library

  • Step-by-step graph building using data filters
  • Merging graphs


Loop and focal detection

  • Data processing
  • Parametrization
  • Result filters


3D rendering of data objects

  • Mesh
  • Graph components
  • Reentry circuits


  • Time functions
  • Track progress
  • Custom logging to console and/or file


contact us

We'd like to hear from you! If you are interested in using DGM, in collaborating with us or want to provide us with valuable feedback, simply fill out the form below and we will contact you as soon as possible.