cynwood
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I am hoping that someone can tell me how an electrocardio gram uses doppler.
Thanks for any help; cynwood
Thanks for any help; cynwood
Ultrasound generates images by measuring the time for ultrasound echoes to return to the proble (very much like SONAR). It uses high frequency sound pulses (in the 1-10 MHz range).russ_watters said:I don't think an ultrasound uses doppler either - its just sonar.
Electrocardiograms (ECGs) don't use the doppler effect at all. ECGs simply record the electrical impulses generated by the heart as it contracts during the cardiac cycle. By placing ECG leads at different locations on the chest, you can examine the electrical impulses generated from different regions of the heart.cynwood said:An electrocardiogram is using doppler to create an illustration of the hearts electrical rhythm. Ultrasound imaging is using it to measure the frequencies of sound waves to determine the location of surfaces within tissues by measuring the time interval between the production of an ultrasonic pulse and the detection of its echo.