High-frequency Echocardiography
High-frequency Echocardiography - Related Videos
08:34
High-Frequency Ultrasound Echocardiography to Assess Zebrafish Cardiac Function
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Cited by 12 •
2020
We describe a protocol to assess heart morphology and function in adult zebrafish using high-frequency echocardiography. The method allows visualization of the heart and subsequent quantification of functional parameters, such as heart rate (HR), cardiac output (CO), fractional area change (FAC), ejection fraction (EF), and blood inflow and outflow velocities.
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.
11:50
High-frequency High-resolution Echocardiography: First Evidence on Non-invasive Repeated Measure of Myocardial Strain, Contractility, and Mitral Regurgitation in the Ischemia-reperfused Murine Heart
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Cited by 9 •
2010
High frequency Doppler ultrasound is a novel technology for assessing regional myocardial function. This work presents first evidence demonstrating applicability of this versatile imaging platform for the repeated measure of myocardial strain, dp/dt, and mitral regurgitation in the ischemia-reperfused (IR) murine heart.
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.
09:00
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.
FAQs
Higher frequencies improve spatial resolution, allowing the system to distinguish closely spaced cardiac structures and display finer tissue boundaries. This increased detail supports evaluation of valve motion and small structural abnormalities. The tradeoff is that the improved resolution does not come without cost, because higher-frequency sound is attenuated more strongly as it travels through tissue.
Tissue attenuation reduces the strength of returning echoes as sound travels farther through the body. Because high-frequency sound experiences greater attenuation, image quality becomes less suitable for deeper structures than for superficial anatomy. Consequently, this technique is most valuable when the cardiac region of interest is relatively near the transducer and fine detail is the main priority.
The piezoelectric transducer performs both sides of the imaging process. It emits rapid sound pulses toward cardiac tissue, then converts returning echoes into image information. This shared transmit-and-receive function allows structural boundaries and moving features to be represented from reflected sound, forming the basis for detailed anatomical and functional cardiac assessment.
The main distinction is the balance between frequency, detail, and penetration. High-frequency echocardiography favors improved spatial resolution, making superficial structures, fine boundaries, valve motion, and small abnormalities easier to examine. Conventional frequency ranges provide greater penetration depth, whereas the high-frequency approach is selected when resolving small or closely spaced features matters more than reaching deeper anatomy.
This approach is most appropriate when the target anatomy is superficial and the examination requires high structural detail. Investigators may select it to inspect fine tissue boundaries, observe valve motion, or identify small structural abnormalities. The choice reflects an intentional priority: obtaining more detailed images of accessible cardiac regions rather than maximizing penetration into deeper tissue.
High-frequency echocardiography can support anatomical assessment and functional measurements while also contributing to disease characterization. In cardiovascular research, repeated imaging can help evaluate changes associated with therapies or development. Its value comes from combining detailed visualization of cardiac structures with observations of motion and measurable functional features, especially in regions accessible to high-frequency imaging.