Experiences with Pulse Arrival Time as Surrogate for Systolic Blood Pressure

Abstract

Arterial Blood Pressure (ABP) is one of the most often measured vital parameter in daily clinical practice. State-of-the-Art non-invasive ABP measurement technologies have obvious limitations and are still mainly based on uncomfortable techniques by complete or partial occlusions of arteries. Additionally, embodiments are bulky, difficult to apply for layman or provide only intermittent measurements. Continuous cuffless ABP measurements are still an unmet clinical need and a topic of ongoing research. We have been investigating the pulse arrival time (PAT) methodology for unobtrusive SBP measurements. Major findings in opportunities as well as challenges of this measure will be discussed in this paper.