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Hemodynamic monitoring provides vital information for diagnosing and treating patients in acute clinical settings. A method is investigated to non-invasively monitor changes in the hemodynamic state. The approach utilizes short-axis ultrasound color flow imaging and processing methods to produce simultaneous waveforms for the arterial area and flow. Beat-to-beat measurements of the mean area, peak...
A low cost multimodal monitoring and signal processing platform is presented. A modular and flexible system was developed, aimed to continuous acquisition of several biological variables at patient bed-head and further processing with application specific algorithms. System hardware is made of a six-channel isolation and signal conditioning front-end along with a high resolution analog-to-digital...
To explore the grey relation between hemodynamic parameters and the diversity of non-invasive systolic blood pressure (NISBP) and invasive systolic blood pressure (INSBP), NISBP-INSBP diversity and hemodynamic parameters were measured in 16 female hypertensive patients. Grey analysis was performed to explore their relations. The diversity of NISBP and INSBP was -29.94??20.815 mmHg. The radial perk...
The esophageal Doppler monitor (EDM) is a minimally-invasive device to measure aortic blood flow and quantify hemodynamics in patients. A modified dual-Doppler EDM, combined with pressure measurements, allows for measurement of aortic volume via the Bramwell-Hill equation. An in-vitro flow system was developed to model the cardioaortic circulation. This system consists of a pump to expel a viscous...
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