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Langendorff and Working Heart

Interface with flow meters, fluid-filled balloon-tipped catheters and pressure-tipped catheters to monitor flow rates and left ventricular pressure. Perform a variety of LVP measurements, both on- and off-line. Use the built-in stimulator to pace the heart. Record continuously for short- and long-term studies, or pre-program to record for specific time periods and dosing events. AcqKnowledge® includes automated analysis routines for blood pressure and left ventricular pressure and will display the results as new channels and export them to a spreadsheet for further analysis.

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The following values are extracted on a cycle-by-cycle basis by the automated LVP analysis routine.

Name
Abbrev.
Contractility index CI
Developed pressure DP
dP/dt Max
dP/dt Min
End diastolic pressure LVEDP
Minimum pressure Min
QA Interval QA
Rate
Recovery time %REC
Systolic pressure SYS
TAU
Tension time index TTI

The Blood Pressure analysis module extracts these values from BP waveform.

Name Abbrev.
Diastolic
Ejection time ET
Heart rate HR
Maximum dP/dt dP/dt max
Mean blood pressure MBP
Minimum dP/dt dP/dt min
QA Interval QA
Recovery Interval %REC
Systolic
Time to peak pressure TTPK

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