Preface: Difference between revisions

The first practical use of ultrasound, using the piezoelectric crystal developed by the brothers Pierre Curie and Jacques Curie in 1880, saw light in the the first World War. Sonar was developed to detect enemy ships, and later, in 1929 Sokolov used sonar to detect flaws in metal. It was this use that developed valuable addition to the diagnostic arsenal of the physician. Where in the early years after the second world war anamnesis, physical examination and the electrocardiogram were the only tools for the doctor with a cardiological patient, currently, echocardiography has developed to an invaluable tool for diagnosing several cardiac diseases.

It was the german W.D. Keidel that first used ultrasound to examine the heart in 1950.