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The MLS370/6 Blood Pressure Module for Windows automatically detects,
analyzes and reports a set of cardiovascular parameters from arterial
or ventricular pressure signals, either online or offline.
The Blood Pressure Module should be used with the latest version of LabChart. Click here for the latest LabChart Update for Windows.
The Classifier View allows for easy selection of pressure waveforms
for further analyses. Pressure cycles that are contaminated by artifact,
have abnormal cycle heights or cycle durations (frequency) can be excluded
using the classifier. In addition, the classifier can be used to select
pressure cycles that have increased frequency and/or amplitude for analysis.
For example, increased heart rate in response to pharmacological agents
is easily identified by a group of pressure cycles with decreased duration.
Above: LabChart recording displaying Blood Pressure Module features. The top right window is the Classifier View, and the bottom left window is the Analysis View The Analysis View displays pressure cycles beat-by-beat or as the average
of a specified number of cycles. Depending on the type of signal under
investigation (ventricular or arterial), commonly reported parameters
specific to the type of signal (i.e. systolic pressure, EDP etc.) are
labelled. These measurements are logged in the Table View for easy exporting.
The module also allows for these measurements to be displayed in LabChart
as continuous data on separate channels. Raw data is unaltered by any
calculations ensuring that the ventricular or arterial signals can be
re-analyzed at any time.
Features and Benefits
- Suitable for analysis of blood pressure from humans as well as large
and small animals
- Blood pressure can be analyzed in real time during acquisition
- BP Classifier for detection and exclusion of atypical waveforms
- Several parameters can be displayed as continuous data on separate
channels as well as logged to the Table View
- Averages any number of pressure waveforms
Detection & Analysis Settings
The BP Settings dialog is used to set blood pressure detection parameters.
The detection algorithm uses minimum cycle height and minimum cycle
duration, with each detected cycle labelled. By selecting ventricular
or arterial pressure, specific waveform parameters are calculated by
the Module. Cycle averaging and isovolumic relaxation (Tau) options
are also set in the window.
BP Settings Dialog Classifier View
The Classifier View allows selection of cycles based on height and duration.
The edges of the red boxes represent the cycle classification limits
and can be dragged using the mouse to include or exclude detected cycles,
in the analyses.
Classifier ViewAnalysis View
Every beat, as well as the average of beats, is displayed in the Analysis
View with vertical markers displayed for each ventricular or arterial
cycle parameter. Scrolling horizontally will display each beat or average
of beats in succession.
Analysis View with markersTable View
All parameters calculated by the Module are recorded in the Table View.
Table rows are linked to beats in the Analysis View so that highlighting
a row will automatically show the corresponding beat(s) in the Analysis
View as well as the original data in the Chart View.
Table ViewSome of the calculated ventricular parameters
include:
- Maximum Pressure
- Maximum dP/dt
- Isovolumic Relaxation
- Minimum Pressure
- Minimum dP/dt
- Mean Pressure
- End Diastolic Pressure (EDP)
- Maximum-Minimum Pressure
- Contractility Index
Some of the calculated arterial parameters:
- Systolic Pressure
- Ejection Time
- Diastolic Pressure
- Pressure at Dicrotic Notch
- Mean Pressure
- Pulse Pressure
Available as Part of LabChart Pro
The Blood Pressure Module is also available as part of LabChart Pro. The LabChart Pro software package includes every LabChart Module. Existing LabChart users and PowerLab system purchasers can upgrade to LabChart Pro at a special price. If you need more information please contact your ADInstruments Representative.
More Information
For more information download the Software Booklet (5.8 MB) or contact your nearest ADInstruments
Representative.
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