This app was made for research pourposes and helps you to calculate the pulse pressure variation based on a picture of the arterial trace. Adjust the image in white bar. Adjust blue bar in the larger pulse and green bar in the smaller pulse inside a respiratory cycle. Click on the delta button and get the pulse pressure variation.
Natural picture distortions generated by lens can modify the accuracy of the app.
Is mandatory training with known traces to understand how it works.
This app is for exclusive medical use and will probably not make sense to the non-medical audience. Do not use this app in decision making. If in doubt, consult your doctor.