Hemodynamic Measurements Mice
Hemodynamic Measurements Mice - Related Videos
06:11
Uncontrolled Hemorrhagic Shock Modeled via Liver Laceration in Mice with Real Time Hemodynamic Monitoring
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Cited by 19 •
2017
Uncontrolled hemorrhage, an important cause of mortality among trauma patients, can be modeled using a standard liver laceration in a murine model. This model results in consistent blood loss, survival, and allows for testing hemostatic agents. This article provides the step-by-step process to perform this valuable model.
11:39
Non-invasive Optical Measurement of Cerebral Metabolism and Hemodynamics in Infants
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Cited by 49 •
2013
We combined frequency-domain near-infrared spectroscopy measures of cerebral hemoglobin oxygenation with diffuse correlation spectroscopy measures of cerebral blood flow index to estimate an index of oxygen metabolism. We tested the utility of this measure as a bedside screening tool to evaluate the health and development of the newborn brain.
06:17
Measuring the Strength of Mice
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Cited by 287 •
2013
Deficits in muscular strength occur in many clinical conditions such as motor neuron disease. The inverted screen and weight lifting tests described here measure strength in mice almost exclusively, with minimal influence of factors such as coordination.
16:09
Monitoring of Systemic and Hepatic Hemodynamic Parameters in Mice
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Cited by 32 •
2014
This film demonstrates how to acquire systemic and hepatic hemodynamics in mice. The whole monitoring includes acquisition of vital parameters, systemic blood pressure, central venous pressure, common hepatic artery flow rate, and portal vein pressure as well as the portal flow rate in mice.
10:07
Measuring Motor Coordination in Mice
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Cited by 500 •
2013
Protocols are presented for two established motor coordination tasks, the accelerating rotarod and horizontal bar, also two tests developed in Oxford recently, the static rods and parallel bars. These tests can detect motor impairments potentially of interest in their own right, as well as being possible variables in tests of other areas of behavior.
FAQs
Each modality samples a different cardiovascular signal. Catheter-based recording captures pressure changes, blood-flow sensors quantify flow, and Doppler ultrasound detects flow velocity or cardiac motion. Because these readouts are not interchangeable, selecting the technique depends on whether the study focuses on arterial pressure, circulation, or cardiac performance. Using the appropriate signal aligns the measurement with the biological question.
These measurements describe complementary aspects of cardiovascular function rather than a single outcome. Arterial pressure reflects pressure within the circulation, heart rate describes cardiac timing, cardiac output indicates cardiac performance, and vascular resistance helps characterize the vascular contribution to circulation. Examining them together can provide a more informative profile of how the cardiovascular system responds to disease, genetic changes, or treatment.
Hemodynamic data become most useful when collected under defined experimental conditions, because the measurements can then be compared across biological states or interventions. A consistent framework helps researchers relate changes in pressure, flow, cardiac performance, or vascular function to the factor being studied. This is particularly important when evaluating disease-related changes, genetic effects, or pharmacological treatments.
Pressure measurements address changes in the force exerted within the circulation, whereas flow measurements describe blood movement. Doppler ultrasound adds information about flow velocity or cardiac motion. These outputs represent related but distinct physiological features, so a pressure result should not be treated as a direct substitute for a flow or motion measurement when characterizing cardiovascular function.
A basic workflow starts by identifying the physiological variable required for the study, such as pressure, flow, or cardiac performance. Researchers then select a compatible approach, including catheter-based recording, a blood-flow sensor, or Doppler ultrasound, and collect the signal under defined experimental conditions. The resulting data can be expressed through measures such as arterial pressure, heart rate, cardiac output, or vascular resistance.
These measurements are useful when a study must characterize functional cardiovascular changes rather than rely only on structural or molecular observations. They support investigations of hypertension, heart failure, and vascular injury by quantifying relevant physiological responses. The resulting measurements can help describe disease-associated changes and provide outcomes for assessing how the cardiovascular system responds during experimental research.
Researchers can compare hemodynamic outcomes across mice with different genetic backgrounds or before and after pharmacological treatment. Changes in arterial pressure, heart rate, cardiac output, or vascular resistance may indicate altered cardiovascular performance or vascular function. This makes the measurements useful for testing whether a genetic change or candidate therapy is associated with a measurable physiological response.