8 analysis of field potential duration – Multichannel Systems Cardio2D Manual User Manual

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Cardio2D Manual

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6.8

Analysis of Field Potential Duration

The "Analysis of Field Potential Duration" is also called "QT-related Interval". The field potential
duration corresponds to the action potential duration, which can be correlated to a QT-like
Interval in an electrocardiogram. It is measured from minimum of the Na+ peak to the maximum /
minimum of the IKr current peak.

The "QT-related Interval" tabbed page until now divided in two separate windows. Please select
an appropriate channel from the heartbeat window of the "Control Window".

On the left side the "QT-related Interval" window the different recording phases of the selected
channel are displayed, on the right side a "Dose Response" curve is shown, if possible to calculate.

Important: Please pay attention to the "Analyze" dialog. To use the QT-related Analysis tool,
you have to enable the check box in the "HB Averager" tab of the "Analyze" dialog in main
menu "Tools" and the respective check box in the "QT-related Analysis" tab.

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