Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Gregory S. H. Chan"'
Autor:
Einly Lim, Gregory S H Chan, Socrates Dokos, Siew C Ng, Lydia A Latif, Stijn Vandenberghe, Mohan Karunanithi, Nigel H Lovell
Publikováno v:
PLoS ONE, Vol 8, Iss 10, p e77357 (2013)
A lumped parameter model of the cardiovascular system has been developed and optimized using experimental data obtained from 13 healthy subjects during graded head-up tilt (HUT) from the supine position to [Formula: see text]. The model includes desc
Externí odkaz:
https://doaj.org/article/7171b7208301433aab1aade45d35e977
Publikováno v:
Journal of Applied Physiology. 117:1037-1048
Cerebral blood flow responses to transient blood pressure challenges are frequently attributed to cerebral autoregulation (CA), yet accumulating evidence indicates vascular properties like compliance are also influential. We hypothesized that middle
Publikováno v:
Physiological Measurement. 33:R1-R31
The human body possesses a unique set of organs that are responsible for providing homeostatic balance to the body's fluids. Of these, the kidneys regulate fluid and electrolyte balance in order to maintain the intracellular and extracellular fluid v
Publikováno v:
The Journal of Physiology. 589:3263-3274
Non-technical summary Brain function is critically dependent on the regulation of cerebral blood flow (CBF) by cerebral blood vessels. We show that a mechanical blood vessel property called compliance plays an important role in determining the way ce
Publikováno v:
Physiological Measurement. 32:1181-1192
There is a need for robust techniques for early and accurate diagnosis of acute coronary syndromes (ACSs), to avoid inappropriate discharge of patients. This study examined the use of frequency spectrum analysis of heart rate variability (HRV) and ph
Publikováno v:
IFAC Proceedings Volumes. 44:14277-14282
In this paper, a computer controlled system has been developed and tested to maintain the hemodynamic stability of kidney failure patients undergoing dialysis. The system uses ultrafiltration rate (UFR) and dialysate sodium concentration (DSC) as the
Autor:
Gregory S. H. Chan, Sarah Bishop, Collin H. H. Tang, Paul M. Middleton, Nigel H. Lovell, Andrey V. Savkin
Publikováno v:
Medical & Biological Engineering & Computing. 49:337-347
Sepsis is associated with impairment in autonomic regulatory function. This work investigates the application of heart rate and photoplethysmogram (PPG) waveform variability analysis in differentiating two categories of sepsis, namely systemic inflam
Autor:
Grant Cave, Nigel H. Lovell, Collin H. H. Tang, Andrey V. Savkin, Paul M. Middleton, Martyn Harvey, Gregory S. H. Chan
Publikováno v:
Physiological Measurement. 31:1605-1621
A rabbit model of endotoxaemia was employed to study the regional changes in photoplethysmogram (PPG) waveform and its low frequency fluctuations, and how they are related to the physiological events during the time course of endotoxic shock. Endotox
Autor:
Elizabeth Steel, Philip Malouf, Teddy M. Cheng, Paul M. Middleton, James D. Mackie, Andrey V. Savkin, Faizan Javed, Gregory S. H. Chan
Publikováno v:
Medical & Biological Engineering & Computing. 48:389-397
To maintain the hemodynamic stability of patient undergoing hemodialysis, this article proposes a novel model-based control methodology to regulate the changes in relative blood volume (RBV) and percentage change in heart rate (DeltaHR(%)) during hem
Autor:
Paul M. Middleton, Philip Malouf, Nigel H. Lovell, Andrey V. Savkin, James D. Mackie, Faizan Javed, Gregory S. H. Chan, Elizabeth Steel
Publikováno v:
Physiological Measurement. 30:1251-1266
This study aims to assess the blood volume and heart rate (HR) responses during haemodialysis in fluid overloaded patients by a nonparametric nonlinear regression approach based on a support vector machine (SVM). Relative blood volume (RBV) and elect