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You can see the reverse flow into the left ventricle from the aorta, with the aortic valve in closed position. Beacuse, as the aortic valve is closed, and the regurgitant jet is coming in, and left ventricular diastolic pressures are lower than the aortic pressures. You cannot say its highly quantitative estimation.
Transcript of the video: This is a still image from a colour Doppler echocardiogram, obtained from the apical five chamber view. This is reverse flow from the aortic valve, that is aortic regurgitation jet. These are the features, you have AR jet, and MR jet, in a still image of colour Doppler echocardiogram.
Transcript of the video: Closure line of aortic valve on M-Mode echocardiogram, is seen as central line, while in bicuspid aortic valve, it is an eccentric closure, nearer to one of the walls of the aorta. This eccentricity of closure of the aortic valve leaflets, can be calculated using what is known as eccentricity index.
Transcript of the video: This is a still image of M-Mode Echocardiogram. Right ventricular outflow tract, left ventricle, left atrium, aorta, aortic valve, mitral valve. M-Mode is Time-Motion Mode. The horizontal axis is time. Vertical axis is distance from the transducer. In the inset you can see the two dimensional image.
Transcript of the video: This is a still image from a colour Doppler echocardiogram, obtained from the apical five chamber view. This is reverse flow from the aortic valve, that is aortic regurgitation jet. These are the features, you have AR jet, and MR jet, in a still image of colour Doppler echocardiogram.
Echocardiogram in parasternal long axis view shows dilated left ventricle, left atrium, aorta and a small portion of the right ventricle, which is usually the outflow region. The large aortic regurgitation jet can be seen as a mosaic jet in the left ventricular outflow tract anterior to the anterior mitral leaflet.
Unlike the valves on the left side like the mitral and aortic, right sided valves can have some leak. That is, mild mitral regurgitation and mild aortic regurgitation are less common. Mostly, they are detected on highly sensitive tests like echocardiogram. In echocardiogram, the Doppler beam can detect this small leak.
Similarly, for echocardiogram, what we would do usually is, first we do a clinical history evaluation, then physical examination, and after that only we proceed with echocardiography in our routine work. You can see the two dimensional sector imaging from an echocardiogram and I have marked out the aorta. This could be a conus tissue.
The image shown here is an animated 2 dimensional echocardiogram. This one is an older mode known as time-motion mode or M-Mode echocardiogram. Opening and closing movements of the aortic and mitral valves are visible. The image shows the blue coloured descending aortic flow on colour Doppler.
Right ventricle is an anterior structure and aortic root is relatively posterior to it, and hence the anteroposterior flow depicted in blue colour. Parasternal long axis view showing colour flow from right ventricle to aorta through the ventricular septal defect with overriding aorta.
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