3 results match your criteria: "City University London School of Engineering and Mathematical Sciences[Affiliation]"
Article Synopsis
- The geometry of coronary vessels is crucial for understanding coronary artery disease (CAD) and its complications, including acute coronary syndromes (ACS).
- Numerical models of the left anterior descending artery were created to analyze flow patterns in patients with myocardial infarction (MI) versus stable CAD (STA).
- Results indicated distinct flow characteristics in MI models, such as larger recirculation zones and specific shear stress conditions, which could help predict the risk of CAD complications based on flow indices.
Pulse oximetry utilises the technique of photoplethysmography (PPG) to estimate arterial oxygen saturation values (SpO2). In poorly perfused tissues, SpO2 readings may be compromised due to the poor quality of the PPG signals. In order to investigate further the threshold where pulse oximetry fails to produce accurate SpO2 values, we have developed a custom made multimode finger pulse oximetry probe that operates in conventional, reflectance and transmittance mode independently and also in a combined mode called transreflectance.
View Article and Find Full Text PDFEvaluation of a multimode photoplethysmographic sensor during cuff-induced hypoperfusion.
Annu Int Conf IEEE Eng Med Biol Soc
March 2011
City University London School of Engineering and Mathematical Sciences, UK.
Photoplethysmography (PPG) is a technique widely used to monitor volumetric blood changes induced by cardiac pulsations. Pulse oximetry uses the technique of PPG to estimate arterial oxygen saturation values(S(p)O(2)). In poorly perfused tissues, S(p)O(2) readings may be compromised due to the poor quality of the PPG signals.
View Article and Find Full Text PDF