Directed Graph Mapping

Get started · Examples

Standard examples (A-F) (1.3 mb) openCarp examples (G-H) (2.6 gb)

* Click here to find out how to export CARTO and RHYTHMIA data to your computer

Our first case

We will go through one of the examples step by step

Download the Standard examples above and unzip them somewhere on your computer
Start DGM
Click Select File and browse to where you unzipped the examples and
go to example E_CARTO_reg_reentry
Select CARTO_260ms_car.txt and press open
Enter 260 in the Cycle Lenght field and press enter
You will now see a first rendering of the mesh and measured nodes
Under Settings > User key enter the key you have received. Save & close
Press Calculate. Depending on the data this will take from a few seconds to a minute
When done, the found loops are displayed on the 3D mesh as shown in the image below

You can now try the other examples yourself, or process your own data.

Other examples

Please check the table below to see which input files correspond to which cycle length and time interval. After setting the cycle length, DGM will automatically use the correct time interval.

For irregular data, a cycle length of -1 should be set

Simulation
	Input file	Cycle length
A. Regular reentry 3D	LAT_p2000.txt	213
B. Regular focal 2D	LAT_p529.txt	500
C. Irregular reentry 2D	LAT_p900.txt	-1
D. Irregular focal 3D	LAT_p2000.txt	-1
Clinical *
E. Regular reentry CARTO	DGM_260ms_car.txt	260
F. Regular focal CARTO	DGM_290ms_car.txt	290
openCarp simulation
G. openCarp 3D irregular reentry	vm.igb	-1
H. openCarp 2D irregular reentry	vm.igb	-1

Example output

A. simulation regular reentry

B. simulation regular focal

C. simulation irregular reentry / H. openCarp 2D

D. simulation irregular focal

E. CARTO regular reentry

F. CARTO regular focal

G. openCarp 3D simulation

How to export clinical cases

Currently a parser is present to automatically convert both CARTO (_car.txt) and RHYTHMIA (.mat) files to the correct DGM input LAT_p{nodes}.txt file. We plan to add support for the Ensite mapping system in the future as well.

CARTO

DGM has been tested with CARTO version V7.1.80.33

Load Study and export Study data

Go to start screen of CARTO
Click Review Study and select the Study from the case you want to export
Now you can make movies and gures which will be also exported to your external hard drive
Click Study (top left) > Export Study Data
Make sure 'Base' and 'CARTO VISITAG Module' is ticked on
Now a pop up appears: 'Create File in progress'. This may take a while depending on how many points the study contains
When this pop up disappears, you exit the study by clicking Study > Exit

Export Study data to external hard drive

Go to start screen of CARTO
Go to System > Export Data ...
Go to the case and select the 'Export Study....zip' and put it in the queue
Enter a password and confi rm it (top right)
Select the the folder in which you want to save the export data on your external hard drive and click export
Now the export is saved on your external hard drive

Decompress export

Finally we need to decompress the files on our own computer. Popular tools to do so are 7zip and winrar. After decrompressing to your preferred folder, you will see a lot of files appear. The ones needed for DGM are the files ending with .mesh and _car.txt.

If present, Ablation file is typically found under VisiTagExport/Sites.txt and PPI in an xml file named Study ....

You are now ready to analyze your own CARTO data with DGM! See examples 5 and 6 for more info.

RHYTHMIA

To export your RHYTHMIA case you need to select Export as > MATLAB - Map Data Basic which is available for systems running SW 3 (Lumipoint), SW 4 (Autotag) and later.