Record and Analyze Pressure-Volume Loop Data!
Flexible graphing capabilities let users display data in a variety of formats (Chart, Scope or X/Y); simple toolbar icons make it easy to switch between display modes. For example, use the X/Y mode to plot Left Ventricular Pressure against Myocardial Wall Thickness, or any other data channel.
The AcqKnowledge Pressure-Volume Loop Analysis (PV-Loop or PV Loop) License includes:
Learn more about the Pressure-Volume Loop Analysis License by watching a tutorial below.
See More...QuickStart Template
Quickly start recording with the included QuickStart Template. The template has the analog and calculation channels pre-programmed and a custom display the shows both the raw waveform data and the most recent loop data at the same time. The template also includes a cardiac values toolbar with key cardiac measures updated every second!
During recording, see the most recent loop data and cardiac values
updated every second!
The Loop Display Window can show:
Easily toggle between the three views with toolbar buttons. The number of seconds of loop data displayed can also be customized, default is most recent 6 seconds.
Baseline Analysis
Baseline Analysis extracts basic single loop measures over user selected data range. The analysis will locate the pressure, volume, and derivative signals and will find the End Diastolic (ED) and End Systolic (ES) boundaries for each loop. The following measures are then extracted for each loop:
The Baseline Analysis can be used to confirm catheter positioning and to view preliminary results to experimental conditions. Results are output in a text table similar to the shown below and can be exported to Excel or saved as a text file.
Full Pressure-Volume Loop Analysis
The full PV Loop Analysis will examine PV loops in a user selected area of the graph. End Diastolic and End Systolic event markers will be placed on all loops in the selected area.
The upper half of the analysis window is split in two with left side showing the multiple loop measures, and right side showing the loop display.
Loop Display: XY plot of Pressure vs. Volume.
Multiple Loop Measures Include:
The lower half displays a text table with per-loop derived measures. Each loop in the selected area will have its own row and the columns displayed will be the same measures displayed in baseline analysis (see above, and can be changed in preferences) and additional power and Tau measures. Measurements can be saved as text, or exported to Excel.
The Pressure-Volume Loop Analysis License is compatible with AcqKnowledge 4.3 software and can be purchased as a Licensed Feature or as part of a complete MP150 Starter System.
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MP36R System
Animal | Pressure-Volume Loop Analysis
MP36R with AcqKnowledge plus P/V Loop Analysis License
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