«Pulse on Time»
۲۶٬۰۷۱ نتیجهEffect of Current and Pulse-on Time on Material Removal Rate and Surface Roughness of Tungsten Carbide in Electric Discharge Machine Die-sinking
The focus of manufacturing for tungsten carbide applications often demands a smooth surface quality as the result Electric Discharge Machine (EDM) die-sinking process, especially in manufacture die and mold with material processed using EDM machine. purpose this study is to analy
Use of pulse transit time as a measure of inspiratory effort in patients with obstructive sleep apnoea.
Pulse transit time (PTT) is the time taken for the arterial pulse pressure wave to travel from the aortic valve to a peripheral site. For convenience, it is usually measured from the R wave on the electrocardiogram to the pulse wave arrival at the finger. Pulse transit time is in
Pulse Transit Time (PTT) Measurements During Laparoscopic and Open Abdominal Surgery: A Pilot Study in ASA I-II Female Patients
Background: The pulse transit time (PTT) is the time interval between the R-wave of the ECG and the appearance of the pulse wave in the periphery during the same cardiac cycle. PTT is influenced by various factors including sympathetic tone and vascular compliance. The authors as
Blood Pressure Estimation based on Pulse Transit Time and Compensation of Vertical Position
A chronically high blood pressure (BP) may lead to arteriosclerosis and consequently is a risk factor for apoplectic stroke and cardiac infarction – the main death causes in industrial countries. Hence, blood pressure recently has become one of the most relevant parameters for th
Value of beat-to-beat blood pressure changes, detected by pulse transit time, in the management of the obstructive sleep apnoea/hypopnoea syndrome.
Two important aspects of a respiratory sleep study are a measure of inspiratory effort and an estimate of the number of arousals. These can be derived from an indirect estimate of beat-to-beat blood pressure (BP), pulse transit time (PTT). This study investigated the reproducibil
Validation of New and Existing Decision Rules for the Estimation of Beat-to-Beat Pulse Transit Time
Pulse transit time (PTT) is a pivotal marker of vascular stiffness. Because the actual PTT duration in vivo is unknown and the complicated variation in waveform may occur, the robust determination of characteristic point is still a very difficult task in the PTT estimation. Our o
The prolongation of pulse transit time after a stellate ganglion block: An objective indicator of a successful block
BACKGROUND An objective marker of successful stellate ganglion block (SGB) does not exist. Horner syndrome, which is currently used to determine the effect of SGB, is sometimes ambiguous. OBJECTIVE To investigate the change in pulse transit time (PTT) after SGB, and to evaluate t
Impact of heart disease and calibration interval on accuracy of pulse transit time-based blood pressure estimation.
Continuous blood pressure (BP) measurement without a cuff is advantageous for the early detection and prevention of hypertension. The pulse transit time (PTT) method has proven to be promising for continuous cuffless BP measurement. However, the problem of accuracy is one of the
Occasional reviews Pulse transit time: an appraisal of potential clinical applications
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 th
Pulse transit time: an appraisal of potential clinical applications.
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 th