Our PV loop system offers accurate hardware combined with an efficient analysis software.


The Pressure-Volume system from Transonic Scisense uses the improved admittance measurement mode, offering an excellent measurement accuracy and absolute volume in real-time.

Indeed, nowadays, the admittance technique has outclassed historical conductance technic, by providing a continuous correction of the parallel conductance without the necessity of saline injection.

Such correction is important for accuracy in volume calculation. Indeed, by removing the parallel conductance (part of the signal going through the muscle), blood signal can be isolated and true volume is calculated and reported in real-time.

Furthermore, Phase angle is provided, allowing to locate the catheter in the ventricle.

Efficient analysis

IOX2 software is used for the complete analysis of loops either in traditional conductance or improved admittance measurement modes.

Its PV loop module offers a very efficient analysis through the following features:

  • Loops from single or multiple animals are simultaneously displayed
  • PV cycles are user selectable for loop analysis
  • Linear or nonlinear regression is used for curve fitting
  • Regression accuracy increased, with specific beats invalidated in a serie
  • Different occlusions can be compared, with several series displayed on the same graph
  • Loops from single or multiple subjects are simultaneously displayed

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