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Inge Gudmar Edler (17 March 1911 – 6 March 2001) was a Swedish cardiologist, who in collaboration with Carl Hellmuth Hertz developed medical ultrasonography and echocardiography. [ 1 ] Edler and Hertz shared the 1977 Lasker-DeBakey Clinical Medical Research Award for this achievement.
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.
Harvey Feigenbaum (born 1933) is an American cardiologist known for his life-long work in the field of echocardiography. [3] He wrote the first textbook on the subject in 1972, which is currently in its 8th edition, and has published over 300 articles. [4]
Doppler echocardiography is a procedure that uses Doppler ultrasonography to examine the heart. [1] An echocardiogram uses high frequency sound waves to create an image of the heart while the use of Doppler technology allows determination of the speed and direction of blood flow by utilizing the Doppler effect .
The use of ICE is specialized and not intended for general echocardiography due to its cost and invasiveness. [1] [2] It is used as a part of a larger heart procedure.A typical use of ICE is for performing a transseptal puncture across the interatrial septum; in other words, pushing a catheter from the right atrium to the left atrium.
Strain rate imaging is a method in echocardiography (medical ultrasound) for measuring regional or global deformation of the myocardium (heart muscle). The term "deformation" refers to the myocardium changing shape and dimensions during the cardiac cycle.
Focus assessed transthoracic echocardiography (or FATE) is a type of transthoracic echocardiogram, or sonogram of the heart, often performed by non-cardiologist.The protocol has been used since 1989 and has four projections; subcostal four-chamber, apical four-chamber, parasternal long axis and parasternal short axis.
MasterClass was founded by David Rogier while a student at Stanford University, originally under the name "Yanka Industries". [6] [7] Rogier, who continues to serve as chief executive officer (CEO), [8] asked Aaron Rasmussen to join the company as a co-founder and chief technology officer; Rasmussen would also serve as creative director, [9] before leaving in January 2017. [7]