Results 211 to 220 of about 98,095 (251)
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Pulse transit time in paediatric respiratory sleep studies
Medical Engineering & Physics, 2007Pulse transit time (PTT) has emerged over the recent decades as a simple and non-invasive measure to quantify inspiratory effort changes in adults with sleep disordered breathing (SDB). Hence, this shows promise to be an effective screening tool for the paediatrics.
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Continuous noninvasive blood pressure measurement by pulse transit time
The 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2005Blood pressure measurement is performed either invasively by an intra arterial catheter or noninvasively by cuff sphygmomanometry. The invasive method is continuous and accurate but has increased risk; the cuff is safe but less reliable and infrequent. A reliable continuous noninvasive blood pressure measurement is highly desirable.
Parry, Fung +4 more
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An Experimental Analysis of Discrimination of Pulse Transit Time
Perceptual and Motor Skills, 1980The present study attempted to determine if individuals could be trained to discriminate changes in their own pulse transit time, an indirect estimate of relative (systolic) blood pressure. A single-subject ABAB reversal-reinstatement design was used in an experimental analysis of the effects of feedback on pulse transit time discrimination in a ...
J E, Martin, L H, Epstein
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A system to measure pulse transit time
2022This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
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Pulse transit time changes observed with different limb positions
Physiological Measurement, 2005Pulse transit time (PTT) is a non-invasive measure of arterial compliance. It can be used to assess instantaneous blood pressure (BP) changes in continual cardiovascular measurement such as during overnight respiratory sleep studies. In these studies, periodic changes in limb position can occur randomly.
Foo, Jong Yong A. +4 more
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[Blood pressure measurement using pulse transit time].
Nederlands tijdschrift voor geneeskunde, 2019Blood pressure has been measured with a cuff for over a 100 years. Recently, various devices and smart phone applications that measure blood pressure without a cuff using pulse transit time (PTT) have become available. These measurements are based on the inverse relationship between blood pressure and PTT. PTT constitutes the time delay between the QRS
Hahnen, C., Helmond, N. van
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Perturbationless calibration of pulse transit time to blood pressure
2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2012Pulse transit time (PTT) often shows strong correlation with blood pressure (BP) and may therefore represent a means for achieving continuous, non-invasive, and cuff-less BP monitoring. However, construction of the subject-specific curve needed to calibrate PTT to BP conventionally requires simultaneous measurements of PTT and BP during an experimental
Mingwu, Gao, Ramakrishna, Mukkamala
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Pulse Transit Time Feedback and Bidirectional Blood Pressure Change
Psychophysiology, 1981ABSTRACTThe current study examined the effects of pulse transit time feedback on systolic and diastolic blood pressure. Three subjects were given feedback designed to increase or decrease transit times. Eleven‐twelve one‐hour training sessions were provided over a two‐week period.
P M, Cinciripini, L H, Epstein
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Estimation of pulse transit time using time delay estimation techniques
2011 4th International Conference on Biomedical Engineering and Informatics (BMEI), 2011The pulse wave propagation is the important electromechanical characteristics of biomedical signals. Conventionally the pulse propagation features are extracted by estimating the propagation time delay between two points called pulse transit time(PTT). The PTT estimation is based on the phase analysis of the cross power spectrum and bispectrum between ...
S. T. Veerabhadrappa +2 more
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Psychological stress and arterial pulse transit time.
The New Zealand medical journal, 1983Progress in isolating the psychological factors contributing to the development of arterial hypertension has been retarded by the absence of suitable, non-invasive and continuous measures of significant aspects of cardiovascular activity. Pulse transit time may help to resolve this problem since it reflects changes in arterial elasticity and diastolic ...
J, Dutch, S, Redman
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