Noise Resistant Method for Cardiac Pulse Wave Arrival Time Estimation

Aortic pulse wave velocity assessment in CMR: a novel method for transit time estimation

Background Aortic pulse wave velocity (PWV) is considered as the “gold standard” measurement of arterial stiffness and is commonly calculated as the ratio between the distance separating two locations along the artery and the transit time (Δt) needed for the pressure or velocity wave to cover this distance. PWV is increasingly assessed by means of cardiovascular magnetic resonance (CMR). Our go...

Estimation of pulse heights and arrival times

Pulse wave velocity in real-time cardiac magnetic resonance

Background Atherosclerosis and its associated diseases are constantly increasing in developed countries. Aortic stiffness is an indicator for atherosclerosis and is associated with mortality and morbidity especially in aortic abdominal aneurysms. For further evaluation of aortic stiffness, we examined n = 13 healthy volunteers using real-time magnetic-resonance imaging (RT-MRI) with highly unde...

Two-Step Time of Arrival Estimation for Pulse-Based Ultra-Wideband Systems

In cooperative localization systems, wireless nodes need to exchange accurate position-related information, such as time-of-arrival (TOA) and angle-of-arrival (AOA), in order to obtain accurate location information. One alternative for providing accurate position-related information is to use ultra-wideband (UWB) signals. High time resolution of UWB signals presents a potential for very accurat...

A Linear Transformation Approach for Estimating Pulse Arrival Time

We propose a new mathematical framework for estimating pulse arrival time PAT . Existing methods of estimating PAT rely on local characteristic points or global parametric models: local characteristic point methods detect points such as foot points, max points, or max slope points, while global parametric methods fit a parametric form to the anacrotic phase of pulse signals. Each approach has i...