Results 21 to 30 of about 15,545,791 (242)
Radial pulse transit time is an index of arterial stiffness [PDF]
Hypertension Research, 2011 Aortic pulse wave velocity, calculated from pulse transit time (PTT), is often used as an indicator of arterial stiffness and suggested to be standardized for heart rate (HR). This study aimed to determine whether PTT obtained directly from radial arterial waveforms could be used to assess arterial stiffness and the effect of HR on it.
Yong-Liang, Zhang +3 more
openaire +2 more sources
Calculation and Validation of Continuous Pulse Transit Time Based on Normalized Pulse Wave Velocity
IEEE Access, 2020 Typically, the pulse transit time (PTT) is extracted as a discrete value per heartbeat: it is calculated as the time difference between specific points of the pulse waveforms measured at two different sites.
Hangsik Shin, Ahyoung Choi
doaj +1 more source
Pulse transit time measurement device and method [PDF]
, 2018 Proposed is a Pulse Transit Time, PTT, measurement concept wherein a forced oscillation technique, FOT, is used to determine a pulse arrival time at alveoli of the lungs of a ...
Aelen, P. +2 more
core +3 more sources
Pulse arrival time: Measurement and clinical applications
MGM Journal of Medical Sciences, 2022 Pulse arrival time is the time elapsed between the R-wave of electrocardiogram and systolic peak in peripheral pulse obtained by any of the plethysmographic methods.
Chaitali A Deshmukh +3 more
doaj +1 more source
P.66 Radial Artery Systolic-Diastolic Pulse Transit Time After Kidney Transplantation
Artery Research, 2020 Purpose/Background/Objective: We have previously shown that restoration of kidney function through kidney transplantation (KTx) is associated with improved aortic stiffness.
Emy Philibert +6 more
doaj +1 more source
Ventilation Induces Changes in Pulse Wave Transit Time in the Pulmonary Artery
Biomedicines, 2023 Pulse wave transit time (PWTT) shortens as pulmonary artery pressure (PAP) increases and was therefore suggested as a surrogate parameter for PAP. The aim of this analysis was to reveal patterns and potential mechanisms of ventilation-induced periodic ...
Fabian Mueller-Graf +11 more
doaj +1 more source
Pulse transit time: an appraisal of potential clinical applications [PDF]
Thorax, 1999 Current techniques for investigating patients with suspected sleep disordered breathing are inadequate. Not only are many of the tests expensive, but they are also cumbersome and many centres require these investigations to be performed in the sleep laboratory. At the heart of the problem is the difficulty in identifying and quantifying the spectrum of
R P, Smith +3 more
openaire +2 more sources
Pulse-echo ultrasound transit time spectroscopy: A comparison of experimental measurements and simulation prediction [PDF]
, 2016 Considering ultrasound propagation through complex composite media as an array of parallel sonic rays, a comparison of computer simulated prediction with experimental data has previously been reported for transmission mode (where one transducer serves as
Wille, Marie-Luise +2 more
core +1 more source
Effects of Enflurane on Pulse Transit Time
Korean Journal of Anesthesiology, 2004 Background: In Anesthetic state, many hemodynamic parameters including blood pressure, heart rate and arterial compliance are changed. Moreover pulse transit time (PTT) is influenced by heart rate, blood pressure changes, and the compliance of the arteries. Methods: In this study, we investigated PTT changes in patients under enflurane anesthesia.
Seong Wan Baik +5 more
openaire +1 more source
transit-timing/transit-timing: Transit Timing En Masse
, 2022 This repository contains source code for the "TESS Transit Timing of 277 Planets" paper. The repository provides code (1) to process TESS light curves (with 2, 10, or 30-minute sampling) to extract transit times, and (2) to automatically download arXiv ...
transit-timing
core +1 more source