History Flashcards
Prior to World War II, what technology inspired early ultrasound investigators to explore ways to apply the concept to medical diagnosis?
Sonar - the technique of sending sound waves through water and observing the returning echoes to characterize submerged objects.
In 1929 and 1935, who studied the use of ultrasonic waves in detecting metal objects?
Often hailed as the father of ultrasonic testing, Sergei Y. Sokolov, famed Soviet scientist at the V.I. Ulyanov (Lenin) Electrotechnical Institute
Who obtained a patent in 1931 for using ultrasonic waves using two transducers to detect flaws in solids?
Mulhauser, in 1931, obtained a patent for using ultrasonic waves, using two transducers to detect flaws in solids
Who developed pulsed ultrasonic testing using a pulse-echo technique?
Firestone (1940) and Simons (1945) developed pulsed ultrasonic testing using a pulse-echo technique.
Researchers in what country started to explore the medical diagnostic capabilities of ultrasound shortly after the close of World War II?
Shortly after the close of World War II, researchers in Japan began to explore the medical diagnostic capabilities of ultrasound
What is A-Mode presentation?
The first ultrasonics instruments used an A-Mode presentation with blips on an oscilloscope screen.
What is a B-Mode ultrasonic presentation?
The ultrasonic data is presented on a screen as a two-dimentional gray-scale image
Why was Japan’s work in ultrasound relatively unknown in the United States and Europe until the 1950’s?
We didn’t have enough spies in Japan reporting back to the United States about research in ultrasonics
Why was Japan the first country to apply Doppler ultrasound, an application of ultrasound that detects internal moving objects such as blood coursing through the heart for cardiovascular investigation?
Still not enough U.S. spies it Japan - we didn’t know what they were doing.
