Normality of Upper and Lower Peripheral Pulse Transit Time of Normotensive and Hypertensive Children

Abstract

The findings herein suggest that stiffer arterial wall may have confounding effects on the derived transit time related measurements but it is limited on the PTTR parameter. Similar to the ABI approach, PTTR may be only confounded by abnormal local changes in either of the measured peripheral arterial wall. Hence, the PTTR technique shows promise to be an ABI marker from this perspective.

Machine Learned Pulse Transit Time (MLPTT) Measurements from Photoplethysmography

“…Van Velzen, et al identified 43 different methods to determine PTT [20] between an ECG R-peak and a PPG signal [21][22][23][24][25]. A PTT for ECG-PPG measurements is called Pulse Arrival Time (PAT).…”

The study of gender differences in physiological variables upon irradiation of therapeutic ultrasound

“…9 PTT (Pulse Transit Time) is the transmission time of the arterial pulse pressure wave from the heart to the peripheral blood vessel, and is widely used to quantify and characterize changes in the physical properties of blood vessels. [10][11][12] It is measured as the time between the R-peak of the ECG (Electro Cardio Graph) and the position that corresponds to 50% of the PPG (Photo Plethysmo Graph). [13][14][15] The speed of pressure wave in artery is directly proportional to blood pressure, while the rapid increase in blood pressure leads to a reduction in PTT due to the stiffening of arterial walls.…”