Doppler Echocardiography
Doppler Echocardiography - Related Videos
14:19
Fetal Echocardiography and Pulsed-wave Doppler Ultrasound in a Rabbit Model of Intrauterine Growth Restriction
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Cited by 11 •
2013
We describe examination of fetal cardiac function with contemporary functional fetal echocardiography and fetoplacental Doppler ultrasound using the VisualSonics VEVO 2100 microultrasound in a surgically induced model of intrauterine fetal growth restriction in a rabbit.
08:04
Murine Fetal Echocardiography
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Cited by 7 •
2013
Fetal and perinatal death is a common feature when studying genetic alterations affecting cardiac development. High-frequency ultrasound imaging has improved 2-D resolution and can provide excellent information on early cardiac development and is an ideal method to detect the impact on cardiac structure and function prior to death.
09:00
Murine Echocardiography and Ultrasound Imaging
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Cited by 61 •
2010
This video demonstrates use of a rail-mounted high-frequency ultrasound probe to perform echocardiography on an anesthetized mouse. The methods describe both conventional two-dimensional and M-mode measurements of cardiac function in addition to newer, more powerful tools such as color Doppler, strain analysis, as well as general and targeted contrast imaging.
08:09
Transthoracic Echocardiography in Mice
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Cited by 81 •
2010
Transthoracic echocardiography offers a noninvasive method for the evaluation of cardiac function in mice. A combination of ultrasound and Doppler imaging modalities can be used to obtain dimensional measurements of the heart and intracardiac blood flow, which together provide an assessment of cardiac systolic and diastolic performance.
09:12
Sound Waves and Doppler Shift
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2023
Source: Arianna Brown, Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA Waves are disturbances that propagate through a material medium or empty space. Light waves can travel through a vacuum and some forms of matter, and are transverse in nature, which means that the oscillations are perpendicular to the direction of propagation. However, sound waves are pressure waves that travel through an elastic medium like air,...
FAQs
Pulsed-wave Doppler and continuous-wave Doppler address different measurement needs. Pulsed-wave recording samples flow at a selected location, whereas continuous-wave recording measures moving blood flow along the ultrasound beam. This distinction helps clinicians choose between localized assessment and evaluation of higher-velocity flow, supporting analysis of valve disease and pressure-related hemodynamic changes.
Color Doppler displays blood-flow patterns across the cardiac chambers and valves, making direction and abnormal flow distribution easier to recognize within the structural image. It can help identify leakage and other abnormal patterns that may not be apparent from anatomy alone. Clinicians therefore use it alongside other Doppler measurements rather than as an isolated assessment.
Blood-flow velocity measurements provide a basis for estimating pressure gradients across cardiac structures. Changes in velocity can therefore reveal hemodynamic consequences of valve narrowing or other flow disturbances, while filling-flow measurements contribute information about chamber filling. These results connect the observed flow pattern with functional effects on cardiovascular performance.
The examination generally combines conventional echocardiographic imaging with Doppler analysis. Clinicians first assess cardiac structure and then select pulsed-wave, continuous-wave, or color techniques according to the measurement need. They interpret flow direction, velocity, pressure-related findings, filling patterns, and abnormalities together, producing a more complete assessment than structural imaging alone.
Doppler echocardiography is particularly useful when clinicians need to assess valve narrowing, valve leakage, chamber filling, or abnormal blood-flow patterns. Its measurements can show how a structural abnormality affects circulation and cardiac function. This makes the technique relevant to diagnostic evaluation of cardiovascular hemodynamics without requiring invasive catheterization.
After diagnosis, Doppler findings can support disease monitoring, treatment planning, and evaluation of cardiovascular hemodynamics. Repeated assessments can help clinicians examine whether flow abnormalities or pressure-related effects change over time. Because the method is noninvasive and can be combined with conventional echocardiography, it also contributes to ongoing clinical decision-making.