Pulsatile Flow Analysis
Pulsatile Flow Analysis - Related Videos
10:02
Characterization of the Isolated, Ventilated, and Instrumented Mouse Lung Perfused with Pulsatile Flow
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Cited by 12 •
2011
The following protocol outlines the process of isolating, ventilating and instrumenting mouse lungs to measure steady or pulsatile pulmonary vascular pressure-flow relationships in order to quantify the effects of blood flow, airflow, airway changes and vascular changes on right ventricular afterload.
11:22
Engineering Biological-Based Vascular Grafts Using a Pulsatile Bioreactor
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Cited by 32 •
2011
Our group has developed a bioreactor culture system that mimics the physiological pulsatile stresses of the cardiovascular system to regenerate implantable small-diameter vascular grafts.
08:08
Increasing Pulmonary Artery Pulsatile Flow Improves Hypoxic Pulmonary Hypertension in Piglets
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Cited by 5 •
2015
Pulmonary hypertension is associated with a significant reduction in pulmonary artery pulsatility, contractility and elasticity, contributing to an increase in pulmonary artery pressure and pulmonary resistance. Using a hypoxic piglet model, this study demonstrated that improving pulmonary artery plasticity using a newly developed pulsatile catheter improves hypoxic pulmonary hypertension.
01:20
Free Cash Flow Analysis
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2025
Free cash flow (FCF) is a critical indicator of a company’s financial flexibility and long-term viability. It represents the cash remaining after a firm covers its essential capital expenditures—funds used to maintain or expand physical assets like equipment, buildings, or technology.Calculating Free Cash FlowFree cash flow is calculated by taking the cash generated from operating activities and subtracting the company’s capital expenditures. This clearly measures how much cash remains after...
09:39
Techniques for the Analysis of Extracellular Vesicles Using Flow Cytometry
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Cited by 31 •
2015
Many different methods exist for the measurement of extracellular vesicles (EVs) using flow cytometry (FCM). Several aspects should be considered when determining the most appropriate method to use. Two protocols for measuring EVs are presented, using either individual detection or a bead-based approach.
FAQs
Pressure gradients drive fluid through vessels, while resistance limits how readily that movement occurs. Their interaction changes the magnitude and timing of measured flow, helping researchers interpret waveform features rather than treating circulation as a constant process. Examining these variables together can reveal how altered vascular conditions influence the movement of biological fluids.
Arterial elasticity affects how vessels respond to rhythmic pressure changes. Flexible vessel walls can alter the transmission and appearance of flow-related waveforms, making elasticity an important factor when relating measurements to vascular function. Including this property helps analyses distinguish changes caused by vessel behavior from those associated with pressure, velocity, or resistance.
Flow velocity describes how quickly fluid moves through a vessel at different points in the pumping cycle. Tracking its changes helps connect rhythmic pumping with variations in waveform shape and circulation. In biological studies, velocity measurements can therefore contribute to evaluations of hemodynamics, tissue perfusion, and the relationship between flow behavior and vascular function.
A study can combine experimental measurements of pressure, flow velocity, or related waveforms with computational models that represent periodic fluid movement. Measurements provide observations of the biological system, whereas modeling supports systematic examination of how pressure gradients, resistance, and arterial elasticity affect outcomes. Together, these approaches help investigate circulation and physiological flow conditions.
Changes in measured waveforms and flow-related variables can be compared with expected patterns of vascular function. Such comparisons may help identify alterations associated with cardiovascular disease, while also clarifying how pressure, resistance, velocity, and vessel elasticity contribute to the observed signal. The analysis supports characterization of circulation rather than relying on a single measurement alone.
Biologists can apply the approach to investigate blood movement, tissue perfusion, and hemodynamics, the study of fluid behavior in circulation. Engineers can use the same physiological flow conditions when developing systems that replicate rhythmic biological pumping. These applications connect measured or modeled waveforms with questions about normal vascular behavior, disease-related changes, and system performance.