In addition to the patented PaR-technology, which is convenient when both flow velocity and arterial blood pressure signals are available, a new technique for the analysis of flow velocity alone was published in 2012. This technique proposes the use of new parameters for the numerical representation of pulsatile signals in order to better represent it's hemodynamic properties. 


These parameters are based upon the Theory of Arterial Acceleration.


The first clinical study making use of these new parameters was published in 2017


A new method for age correction and graphical representation of the new parameters was published in 2018


Applying age corrected Z-scores for the analysis of changes in middle cerebral artery flow velocity after carotid endarterectomy was published in 2021

Applying PaR ratio for the detection of increased intracranial pressure in patients with traumatic brain injury


We use cookies

We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.