Userdata

Background
Description

Background

Electroanatomic mapping data is stored in a Matlab data structure called userdata. This page provides a description of the data types stored in userdata. Please see here for instructions on how to create userdata.

Description

userdata
    |.cartoFolder
    |.surface
    |   |.triRep
    |   |.isVertexAtRim
    |   |.act_bip
    |   |.uni_imp_frc
    |.electric
    |   |.tags
    |   |.names
    |   |.egmX
    |   |.egmSurfX
    |   |.barDirection
    |   |.egm
    |   |.egmRef
    |   |.ecg
    |   |.annotations
    |   |   |.woi
    |   |   |.referenceAnnot
    |   |   |.mapAnnot
    |   |.voltages
    |   |   |.bipolar
    |   |   |.unipolar
    |   |.impedances
    |   |   |.time
    |   |   |.value
    |   |.force
    |   |   |.force
    |   |   |.axialAngle
    |   |   |.time_force
    |   |   |.time_axial
    |   |   |.time_lateral
    |.notes

userdata.cartoFolder

tbc

userdata.surface

userdata.surface.triRep

tbc

userdata.surface.isVertexAtRim

tbc

userdata.surface.act_bip

An n x 2 matrix containing mapping data, where n is the number of points in userdata.surface.triRep. Each row contains the system-assigned local activation time in column 1 and the system-assigned bipolar voltage in column 2.

userdata.surface.uni_imp_frc

An n x 3 matrix containing mapping data, where n is the number of points in userdata.surface.triRep. Each row contains the system-assigned unipolar voltage in column 1, the system-assigned impedance value in column 2 and the system-assigned force value in column 3.

userdata.electric

userdata.electric.tags

tbc

userdata.electric.names

tbc

userdata.electric.egmX

The 3D co-ordinates of each position in space where an electrogram was recorded.

userdata.electric.egmSurfX

The 3D co-ordinates of each position in space on the surface defined in userdata.surface.triRep corresponding to each recorded electrogram.

userdata.electric.barDirection

tbc

userdata.electric.egm

The electrograms recorded at each position given in userdata.electric.egmX

userdata.electric.egmRef

A reference electrogram, such as recorded from the coronary sinus corresponding to each electrogram recorded at the positions given in userdata.electric.egmX.

userdata.electric.ecg

A surface ECG, such as recorded from V1 corresponding to each electrogram recorded at the positions given in userdata.electric.egmX.

userdata.electric.annotations

userdata.electric.annotations.woi

tbc

userdata.electric.annotations.referenceAnnot

tbc

userdata.electric.annotations.mapAnnot

The system-assigned local activation time assigned to each electrogram recorded at the positions given in userdata.electric.egmX.

userdata.electric.votlages

userdata.electric.votlages.bipolar

tbc

userdata.electric.votlages.unipolar

tbc

userdata.electric.impedances

userdata.electric.impedances.time

tbc

userdata.electric.impedances.value

tbc

userdata.electric.force

userdata.electric.force.force

tbc

userdata.electric.force.axialAngle

tbc

userdata.electric.force.time_force

tbc

userdata.electric.force.time_axial

tbc

userdata.electric.force.time_lateral

tbc