Blood Flow Analysis
Blood Flow Analysis - Related Videos
03:38
Developing a Cerebral Blood Flow Atlas for Blood Flow Mapping
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2025
Source: Tan, Z., et al., Construction and Application of Cerebral Functional Region-Based Cerebral Blood Flow Atlas Using Magnetic Resonance Imaging-Arterial Spin Labeling. J. Vis. Exp. (2024).This video demonstrates the method to construct a cerebral blood flow atlas by integrating magnetic resonance imaging or MRI-arterial spin labeling data with segmented brain regions, visualizing blood flow patterns, and quantifying flow levels across functional areas.
11:36
Intravital Microscopy of the Spleen: Quantitative Analysis of Parasite Mobility and Blood Flow
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Cited by 17 •
2012
We show the method for performing intravital microscopy of the spleen using GFP transgenic malaria parasites and the quantification of parasite mobility and blood flow within this organ.
01:29
Blood Flow
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2025
Blood is pumped by the heart into the aorta, the largest artery in the body, and then into increasingly smaller arteries, arterioles, and capillaries. The velocity of blood flow decreases with increased cross-sectional blood vessel area. As blood returns to the heart through venules and veins, its velocity increases. The movement of blood is encouraged by smooth muscle in the vessel walls, the movement of skeletal muscle surrounding the vessels, and one-way valves that prevent backflow. Slow...
12:52
Isolation and Flow Cytometric Analysis of Glioma-infiltrating Peripheral Blood Mononuclear Cells
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Cited by 17 •
2015
Presented here is a straightforward method for the isolation and flow cytometric analysis of glioma-infiltrating peripheral blood mononuclear cells that yields time-dependent quantitative data on the number and activation status of immune cells entering the early brain tumor microenvironment.
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
Doppler ultrasound estimates blood velocity by measuring frequency shifts created when sound waves reflect from moving red blood cells. The resulting measurement helps characterize circulation in a specific vessel or vascular region. Clinicians can then compare flow findings with suspected obstruction, altered resistance, or inadequate tissue perfusion.
Magnetic resonance imaging and contrast angiography provide complementary measurements to Doppler ultrasound, allowing clinicians to examine circulation using more than one type of evidence. Comparing these data can help assess vessels and perfusion from different measurement perspectives, particularly when evaluating suspected cardiovascular disease, stroke, or peripheral vascular disorders.
Altered vessel resistance, obstruction, and turbulence are important hemodynamic findings because they signal that blood movement is not proceeding under usual vascular conditions. When paired with evidence of inadequate perfusion, they can indicate impaired delivery to tissue. Measuring these features supports assessment of cardiovascular disease, stroke, and peripheral vascular disorders.
Including microvascular networks extends assessment beyond the circulation of larger arteries and veins. This focus matters because tissue perfusion reflects whether blood movement reaches areas that depend on it. Linking vascular measurements with organ function helps clinicians and researchers examine how hemodynamics influence physiology and recognize inadequate perfusion.
Clinicians can use Doppler ultrasound, magnetic resonance imaging, or contrast angiography to obtain complementary evidence about circulation and tissue perfusion. These measurements support diagnosis and monitoring in cardiovascular disease, stroke, and peripheral vascular disorders. Tracking flow-related findings also helps reveal whether vascular abnormalities or perfusion deficits persist.
In research settings, blood flow analysis helps evaluate therapies and investigate how hemodynamics influence organ function. Measurements of vessel flow and tissue perfusion provide a quantitative basis for examining whether an intervention changes circulation or whether altered blood movement is associated with effects on organ-level function.
Blood flow analysis can contribute to stroke evaluation by showing whether circulation and tissue perfusion are altered. That information adds a quantitative hemodynamic perspective to clinical assessment, while related measurements can also help monitor changes over time. The same framework applies to cardiovascular disease and peripheral vascular disorders.