Data Reference

Field name

Description

Size

Userdata

.systemName

Name of the clinical system that was used for collecting the clinical data

.cartoFolder

Absolute path to the original directory in which a Carto dataset was unzipped.

.velocityFolder

Absolute path to the original directory in which a Velocity dataset was unzipped.

.precisionFolder

Absolute path to the original directory in which a Precision dataset was unzipped.

.rhythmiaFolder

Absolute path to the original directory in which a Rhythmia dataset was unzipped.

.electric

.tags

The physician-visible names of the points applied during the clinical case.

n points x 1

.names

The internal names of the points used by the clinical electroanatomic mapping system

n points x 1

.electrodeNames_bip

The names of the electrode pair recording the bipole electrogram at each point

n points x 1

.egmX

The Cartesian co-ordinates of the mapping point

n points x 3

.egm

The recorded bipolar elecrtograms

n points x egm duration

.eletrodeNames_uni

The names of the two unipole electrodes which make up the bipolar electrode pair at each mapping point.

n points x 2

.egmUniX

The Cartesian co-ordinates of the two unipole electrodes which make up the bipolar electrode pair at each mapping point.

n points x 3 x 2

.egmUni

The recorded unipolar electrograms

n points x egm duration x 2

.egmRef

The reference electrograms for each point

n points x egm duration

.ecg

The surface electrocardiogram for each point

n points x egm duration

.sampleFrequency

The sampling frequency of electrogrms in the dataset

Integer (Hz)

.annotations

.woi

The window of interest for each point relative to the reference annotation

n points x 2

.referenceAnnot

The reference annotation for each point with one value each for the start and end of the window

n points x 1

.mapAnnot

The local activation time annotation for each point relative to the reference annotation

n points x 1

.signalProps{1..m}

Sub-field to contain data relating to each of m clinical system-defined signal properties

m signal properties

.name

Name of the clinical-system derived signal property metric (for example CFAEMean)

n points x 1

.value

Value of the signal property for each of n points

n points x 1

.propSettings

String containing the user-defined settings used to create the clinical system-derived signal properties, for example “peak amplitude,X; temporal_spacing,Y”

Variable length string

.voltages

.bipolar

The bipolar voltage measured by the clinical mapping system for each point

n points x 1

.unipolar

The unipolar voltage measured by the clinical mapping system for each point

n points x 1

.impedances

.time

Cell array of time values for impedance traces for each point

1 x n points

.time{n}

Time values for impedance traces for point n

Impedance trace duration x 1

.value

Cell array of impedance values for for each point

1 x n points

.value{n}

Impedance values for point n

Impedance trace duration x 1

.egmSurfX

The Cartesian co-ordinates of the mapping point, projected to the closest point on the surface of the chamber

n points x 3

.barDirection

Surface normal for each mapping point

n points x 3

.notes

Cell array of notes relevant to the dataset

>=1 x n notes

.surface

.triRep

A Trirep object

.X

The Cartesian co-ordinates of the vertices in the surface mesh

n vertices x 3

.Triangulation

The vertex indices of each face in the surface mesh

n faces x 3

.isVertexAtRim

Logical array with true values indicating vertices that are on a free boundary

n vertices x 1

.act_bip

Local activation time data (column 1) and bipolar voltage data (column 2) from the clinical map

n vertices x 2

.uni_imp_frc

Unipolar voltage data (column 1), impedance data (column 2) and force data (column 3) from the clinical map

n vertices x 3

.signalMaps{1..n}

Sub-field to contain data relating to each of m clinical system-defined signal property maps

m signal property maps

.name

Name of the clinical-system derived signal property map (for example CFAEMean)

Single string value

.map

Value of the signal properties at every point

n points x 1

.propSettings

String containing the user-defined settings used to create the clinical system-derived signal properties, for example “peak amplitude,X; temporal_spacing,Y”

Variable length string

.rf

Structure field to store manually acquired ablation site data

.originaldata

.force

Force data

.time

Ablation time data

n time intervals x 1

.force

Contact force data

n time intervals x 1

.axialangle

Axial angle

n time intervals x 1

.lateralangle

Lateral angle

n time intervals x 2

.position

Cartesian co-ordinates

n time intervals x 3

.ablparams

Ablation data

.time

Ablation time data

n time intervals x 1

.power

Power

n time intervals x 1

.impedance

Impedance

n time intervals x 1

.distaltemp

Temperature

n time intervals x 1

.rfindex

Structure field to store automatically acquired ablation site data

.name

.tag

Structure field to store ablation tag data from the Carto3 Visitag module

.X

Cartesian co-ordinates of each tag

n tag x 3

.time

Time stamp of each tag

n tag x 1

.avgForce

Average force applied at each tag

n tag x 1

.maxTemp

Maximum recorded catheter tip temperature at each tag

n tag x 1

.maxPower

Maximum applied radiofrequency power at each tag

n tag x 1

.Impedance

.baseImp

Baseline impedance, in Ohms, recorded at each tag

n tag x 1

.impDrop

Impedance drop, in Ohms, recorded at each tag

n tag x 1

.fti

Force time integral calculated at each tag

n tag x 1

.index

.name

Proprietary name of the calculated radiofrequency index

String

.value

Value of the proprietary radiofrequency index

n tag x 1

.grid

Structure field to store grid data from the Carto3 Visitag module

n tag x 1 cell array containing m grid point x 1 array

.X

Cartesian co-ordinates of this grid point in the ablation dataset [X, Y, Z]

1 x 3 array

.time

Timeseries for this grid point

n time intervals x 1

.index

.name

Proprietary name of the calculated radiofrequency index

String

.value

Timeseries of the proprietary radiofrequency index

n time intervals x 1

.impedance

Impedance timeseries for this grid point, Ohms

n time intervals x 1

.temperature

Temperature timeseries for this grid point, C

n time intervals x 1

.power

Power timeseries for this grid point, W

n time intervals x 1

.impedanceDrop

Impedance drop timeseries for this grid point, Ohms

n time intervals x 1

.force

Force timeseries for this grid point, g

n time intervals x 1