Research:
MPress Pressure Analysis Software
MPress Pressure Analysis Software
Millar's MPress software provides a comprehensive analysis of single and dual pressure data. The easy-to-use program reads data files of text tab delimited format generated by ADInstruments PowerLab or other similar data acquisition systems. The data is presented in a clean, readable format complete with data analysis graphs, hemodynamics summary, and pressure vs. dP/dt loops. The results can be saved in text format for easy export to a spreadsheet or word processor software program.
 Demo Version is Now Available.
Please login as a registered user to download the software.
MPress opens the text files generated by the data acquisition software and applies a variety of algorithms to the pressure data to calculate the following hemodynamic parameters:
| Parameters Calculated by MPress Software |
| Ventricular Parameters |
Arterial Parameters |
| HR |
Heart Rate |
HR |
Heart Rate |
| Pmax |
Maximum Pressure |
Pmax |
Maximum Pressure |
| Pmin |
Minimum Pressure |
Pmin |
Minimum Pressure |
| Ped |
End-Diastolic Pressure |
Ped |
End-Diastolic Pressure |
| dP/dt max |
Maximum dP/dt |
dP/dt max |
Maximum dP/dt |
| dP/dt min |
Minimum dP/dt |
dP/dt min |
Minimum dP/dt |
| P@dP/dt max |
Pressure at dP/dt Max |
P@dP/dt max |
Pressure at dP/dt Max |
| P@dV/dt max |
Pressure at dV/dt Max |
P@dV/dt max |
Pressure at dV/dt Max |
| Max/Min delta |
Max-Min Pressure |
Max/Min delta |
Max-Min Pressure |
| Contractility Index |
Contractility Index |
Contractility Index |
Contractility Index |
| Systolic Duration |
Systolic time duration |
Systolic Duration |
Systolic time duration |
| Diastolic Duration |
Diastolic time duration |
Diastolic Duration |
Diastolic time duration |
| Cycle Duration |
Cycle Duration |
Cycle Duration |
Cycle Duration |
| Relaxation Index |
Relaxation Index |
Relaxation Index |
Relaxation Index |
| Tau (Weiss) |
Relaxation constant |
Tau (Weiss) |
Relaxation constant |
| Tau (Glantz) |
Relaxation constant |
Tau (Glantz) |
Relaxation constant |
| |
|
MAP |
Mean Arterial Pressure |
| |
|
Notch Pressure |
Dicrotic Notch Pressure |
MPress contains an intuitive user menu that offers easy access to a variety of displays and calculation tables for several cardiovascular parameters.
MPress allows seamless integrated access from ADInstruments Chart. Data can be recorded through Chart 5.4.2 and imported into MPress by clicking the 'M' Heart icon in the Chart toolbar. Below is a screen snapshot of the waveform display.
The hemodynamics summary for ventricular pressure is displayed below. These parameters are calculated for each cycle. A linear regression can be performed using any two parameters.
MPress had the ability to display pressure vs. dP/dt loops as shown in the snapshot below.
Data may be easily exported to spreadsheets or
text files, and graphical information can be placed into presentations
or papers for publication.
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