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Echocardiography, also known as cardiac ultrasound, is the use of ultrasound to examine the heart. It is a type of medical imaging , using standard ultrasound or Doppler ultrasound . [ 1 ] The visual image formed using this technique is called an echocardiogram , a cardiac echo , or simply an echo .
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A physician may recommend cardiac imaging to support a diagnosis of a heart condition. Medical specialty professional organizations discourage the use of routine cardiac imaging during pre-operative assessment for patients about to undergo low or mid-risk non-cardiac surgery because the procedure carries risks and is unlikely to result in the change of a patient's management. [1]
The ultrasound catheter tip is slid in over the guidewire and positioned, using angiography techniques so that the tip is at the farthest away position to be imaged. The sound waves are emitted from the catheter tip, are usually in the 20-40 MHz range, and the catheter also receives and conducts the return echo information out to the external ...
Medical ultrasound includes diagnostic techniques (mainly imaging techniques) using ultrasound, as well as therapeutic applications of ultrasound. In diagnosis, it is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs, to measure some characteristics (e.g., distances and velocities) or to generate an informative audible sound.
A transthoracic echocardiogram (TTE) is the most common type of echocardiogram, which is a still or moving image of the internal parts of the heart using ultrasound.In this case, the probe (or ultrasonic transducer) is placed on the chest or abdomen of the subject to get various views of the heart.
Hemopericardium can be diagnosed using echocardiography, a cardiac ultrasound. [6] Chest X-rays are also often taken when hemopericardium is suspected and would reveal an enlarged heart. [6] Other observable signs include rapid heart rate, jugular venous distension, low blood pressure, and pulsus paradoxus. [6]
Ultrasound showing aortic regurgitation and vegetations on the aortic valve. [ 19 ] In terms of the diagnosis of aortic regurgitation a common test for the evaluation of the severity is transthoracic echocardiography , which can provide two-dimensional views of the regurgitant jet, allow measurement of velocity, and estimate jet volume. [ 2 ]