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Ultrasound is sound with frequencies greater than 20 ... Francis Galton in 1893 invented the Galton whistle, ... Such frequencies were not possible at the ...
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.
Ian Donald CBE FRFPSGlas FRCOG FRCP (27 December 1910 – 19 June 1987) was an English physician who pioneered the diagnostic use of ultrasound in obstetrics, enabling the visual discovery of abnormalities during pregnancy. [2]
John Julian Cuttance Wild (August 11, 1914 – September 18, 2009) was an English-born American physician who was part of the first group to use ultrasound for body imaging, most notably for diagnosing cancer. Modern ultrasonic diagnostic medical scans are descendants of the equipment Wild and his colleagues developed in the 1950s.
OB/GYN doctors were the first to start using portable ultrasound systems as these could be brought bedside or were affordable enough to be purchased by a private practice. Currently portable ultrasound machines are used in Cardiac , Vascular , Radiology , Endocrinology , Pediatric , Gastroenterology , Hepatology [ 8 ] [ 9 ] and OB/GYN applications.
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 .
From ancient history to the modern day, the clitoris has been discredited, dismissed and deleted -- and women's pleasure has often been left out of the conversation entirely. Now, an underground art movement led by artist Sophia Wallace is emerging across the globe to challenge the lies, question the myths and rewrite the rules around sex and the female body.
Floyd Alburn Firestone (Shiloh[], OH [1], 1898–1986) was an acoustical physicist.In 1940 while a professor at the University of Michigan invented the first practical ultrasonic testing method and apparatus. [2]