Sunday, November 25, 2012

Monitoring the Heart With Doppler Techniques

Throw a stone into a serene lake and you will see small rings of water form around the spot where the stone has fallen below the surface. Keep your eyes open, and these circles will be higher, away from the center, and gradually disappears. You may wonder what this has to do with cardiovascular health. The answer is that the circular waves are a visual symbolic representation of what is known in the theory of waves and the Doppler techniques we developed on the basis of this effect is used in cardiac screening.

Doppler measurements because the mobile frequencies or waves emitted by a moving object and the point of view of an observer stable or, on the contrary, from an object to an observer moving again. What is measured is not the individual frequency of a wave, but rather changes in frequency with each successive wave as the object moves toward or away from the observer. It works with sound and light, not to mention liquids such as the lake and the example of stone. Imagine an ambulance with its siren screaming and rushing towards high beams on, then before you. The nature of both the sound of the siren and the visibility of changes beams higher than the ambulance approaches and recedes. This change is the Doppler effect.

When it comes to health and technology today, we use the technique for Doppler echocardiograms. Echocardiograms use ultrasound technology to examine the heart by generating 2D slices of the heart, which are images taken in cross section of the heart. With the information provided by 2D echocardiography, one then also analyzes the ultrasound Doppler. This system monitors the blood as it is pumped by the heart and moves through its ventricular walls.

Some things that can be learned from examining the effect of Doppler ultrasound are:

- Operation of the heart valve

- Communication between the left and right sides of the heart

- Valvular Regurgitation like blood leaking

- Intervals of pumping blood between the left and right heart

The equipment we use ultrasound to measure the Doppler effect is very sophisticated and is therefore an important part of the training of health care for those specializing in the treatment of cardiovascular disease. With the right training and experience with such techniques and equipment, there are many career doors that open. Can find work in hospitals, private cardiology and diagnostic centers, and even manufacturers.

When Christian Doppler proposed his theory in the mid-19th century, who knew that he was staring down the circles in the lake where he had to throw a stone. He focused on the light. But his work has helped light the chambers of the heart to the medical community and health well-being.

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