Pulmonary Artery Peak Velocity
Pulmonary Artery Peak Velocity - Related Videos
08:17
Murine Echocardiography of Left Atrium, Aorta, and Pulmonary Artery
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Cited by 8 •
2017
The following protocol describes the methodology for the acquisition and analysis of echocardiographic images used to obtain the Left Atrial Volume (LAV), Aorta (Ao) diameter, and Pulmonary Artery (PA) diameter in mice. This technique is a non-invasive, non-terminal procedure that allows assessment of the cardiopulmonary function.
10:33
Assessment of Right Ventricular Structure and Function in Mouse Model of Pulmonary Artery Constriction by Transthoracic Echocardiography
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Cited by 34 •
2014
Right ventricle (RV) dysfunction is critical to the pathogenesis of cardiovascular disease, yet limited methodologies are available for its evaluation. Recent advances in ultrasound imaging provide a noninvasive and accurate option for longitudinal RV study. Herein, we detail a step-by-step echocardiographic method using a murine model of RV pressure overload.
02:50
Seldinger Technique Based Pulmonary Artery Catheterization: A Procedure to Insert Pulmonary Artery Catheter Through the Jugular Vein in a Porcine Model
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2025
In this video, we have demonstrated a step-by-step procedure of pulmonary artery catheterization by inserting an intravascular catheter through jugular vein and reach the pulmonary artery to measure the cardiac chamber pressure in porcine model.
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.
07:21
Measurement of Pulmonary Artery Pressure in Rats Using Right Heart Catheterization
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2025
The protocol provides a detailed introduction to the experience of using the right heart catheterization method to detect pulmonary artery pressure in rats, which will help to obtain accurate data more efficiently and improve the success rate of the experiment. This method also improves the reproducibility of experiments across different laboratories.
FAQs
Doppler echocardiography translates the frequency shift produced by moving red blood cells into a flow signal. Spectral Doppler then displays that signal as a waveform, allowing the operator to locate the highest recorded point rather than relying on an average flow value. This makes the measurement a focused descriptor of right-sided outflow during the cardiac cycle.
The Doppler beam must follow the direction of blood movement closely because the recorded frequency shift depends on how the ultrasound encounters moving cells. If alignment is poor, the displayed maximum may not represent the true outflow speed. Careful positioning therefore supports comparison across examinations and helps clinicians interpret changes during follow-up.
The value should not be interpreted in isolation. Clinicians consider it with pulmonary valve anatomy, pressure estimates, and other hemodynamic findings. This combined view helps place the measured outflow speed in context when evaluating possible pulmonary outflow obstruction or monitoring congenital or acquired heart disease. It also reduces reliance on a single Doppler number.
During an examination, ultrasound is used to interrogate blood flow through the pulmonary valve and into the pulmonary artery. Doppler information is acquired from moving red blood cells, and spectral Doppler presents the resulting waveform. The operator then identifies the waveform’s maximum velocity and reviews it with valve anatomy and related hemodynamic measurements.
It can support assessment when pulmonary outflow obstruction is a concern, and it can contribute to surveillance of congenital or acquired heart disease. Repeating the measurement during follow-up allows clinicians to assess changes over time, particularly when considered alongside pressure estimates, valve anatomy, and other hemodynamic findings. Its noninvasive nature supports serial cardiac evaluation.
A change in the recorded maximum may provide a follow-up signal, but its meaning depends on the rest of the echocardiographic assessment. Reviewing the waveform with pulmonary valve anatomy, pressure estimates, and other hemodynamic findings helps distinguish an isolated measurement difference from a broader change in right-sided outflow. This supports monitoring over time.