Blood Microcirculation Measurement
Blood Microcirculation Measurement - Related Videos
10:40
Visualization and Analysis of Blood Flow and Oxygen Consumption in Hepatic Microcirculation: Application to an Acute Hepatitis Model
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Cited by 10 •
2012
An optical system was developed to visualize hepatic microcirculation with FITC-labeled erythrocytes and to measure the partial pressure of oxygen in the microvessels with laser-assisted phosphorimetry. This method can be used to investigate physiological and pathological mechanisms by analyzing microvascular structure, diameter, blood flow velocity, and oxygen tension.
08:37
Intravital Microscopy of the Mouse Brain Microcirculation using a Closed Cranial Window
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Cited by 36 •
2010
Intravital microscopy to follow temporal and spatial hemodynamic and inflammatory events in the pial microcirculation.
07:19
The Mouse Cremaster Muscle Preparation for Intravital Imaging of the Microcirculation
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Cited by 46 •
2011
A tissue preparation is described for visualization and experimental manipulation of the living microcirculation. In anesthetized male mice, the thin, highly vascularized cremaster muscle is prepared for intravital microscopy to study microvascular networks including arterioles, capillaries and venules. This preparation is readily adapted for rats and hamsters.
10:56
Automated Measurement of Microcirculatory Blood Flow Velocity in Pulmonary Metastases of Rats
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Cited by 2 •
2014
A method is presented to measure microcirculatory blood flow velocity in pulmonary cancer metastases of the pleural surface in rats in an automated fashion, using closed-chest pulmonary intravital microscopy. This model has potential to be used as a widespread tool to perform physiologic research on pulmonary metastases in rodents.
06:02
Microiontophoresis and Micromanipulation for Intravital Fluorescence Imaging of the Microcirculation
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Cited by 3 •
2011
Microiontophoresis entails movement of ions from a micropipette in response to a difference in electrical potential between the inside and outside of the micropipette. Biologically active molecules are thereby delivered in proportion to electrical current. We illustrate acetylcholine microiontophoresis in conjunction with micromanipulation to study endothelium-dependent vasodilation in the microcirculation.
FAQs
The measured variable determines what the experiment can reveal. Vessel diameter reflects changes in vascular tone, whereas red blood cell movement and perfusion describe flow behavior. Capillary density adds information about the number of visible exchange vessels. Selecting among these readouts helps relate microvascular changes to tissue oxygen and nutrient exchange.
Intravital microscopy, laser Doppler flowmetry, and video-based imaging capture different aspects of microvascular behavior. Depending on the technique, investigators may assess vessel diameter, red blood cell movement, perfusion, or capillary density. This distinction matters because measurements from different methods may describe complementary features rather than identical properties of tissue blood flow.
Vascular tone, pressure, and blood cell dynamics can each alter the measured microcirculatory signal. Changes in vascular tone may modify vessel diameter, while pressure and red blood cell behavior can influence flow-related observations. Accounting for these factors helps investigators interpret whether a result reflects altered vessel caliber, blood movement, or overall tissue perfusion.
Selection begins with the biological feature the study needs to evaluate, such as vessel diameter, red blood cell movement, perfusion, or capillary density. Investigators then choose a compatible approach, including intravital microscopy, laser Doppler flowmetry, or video-based imaging. The resulting measurement can be compared across conditions to identify microvascular changes.
This assessment is useful when researchers need to characterize tissue perfusion, vascular dysfunction, inflammation, or responses to treatment. It can support investigations of shock, diabetes, cardiovascular disease, and impaired wound healing. In each setting, microvascular measurements provide a way to examine how local blood flow changes alongside disease or therapeutic conditions.
Measurements can show whether treatment is associated with changes in vessel diameter, red blood cell movement, perfusion, or capillary density. These outcomes help researchers evaluate microvascular responses rather than relying only on broader vascular observations. In medicine, that information can clarify changes in tissue perfusion and vascular function during disease or treatment investigation.