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Pulse Examination Started
Pulse-echo examination of the body started in the late 1940's following developments of sonar, radar, and ultrasound flaw detectors -
Developed pulse-echo ultrasound technology
Researchers across the USA, Japan, and Europe developed pulse-echo ultrasound technology. In pulse-echo ultrasound, a transducer both produces the transmitted sound wave and receives its reflected echo. The pulse-echo method is used in multiple ultrasound imaging modes -
First Echocardiogram
Physician Inge Edler and Engineer C. Hellmuth Hertz performed the first successful echocardiogram -
Industrial ultrasound technology
Furthermore, he discovered that when ultrasound was applied to a pregnant person's abdomen, the technology produced “a dark oval with crackling shadows.” This imaging offered a window into the uterus, with white lines indicating a placenta in formation, and captured a fetal heartbeat. -
Investigation of Abdominal Masses by Pulsed Ultrasound
A medical article titled “Investigation of Abdominal Masses by Pulsed Ultrasound” was published by Ian Donald, John MacVicar, and Tom Brown. For the first time, ultrasound echo was used for the dating of a pregnancy, which was achieved by comparing current fetal size with fetal growth trajectory charts. -
Ultrasound in Ob/Gyn
Dr. Ian Donald incorporated ultrasound into the OB/GYN field of medicine. -
Midwives and pregnant patients experienced the first obstetric ultrasounds
first obstetric ultrasounds performed by Donald and his colleagues in Glasgow hospitals between 1963 and 1968. The experience was positive, leading to the expression of wonder and delight by expectant parents. Donald, MacVicar, and Brown produced the “Diasonograph,” the world’s first commercial ultrasound scanner. -
Doppler Technique
Don Baker, Dennis Watkins, and John Reid designed pulsed Doppler ultrasound technology to image blood flow -
The development of the microchip
The development of the microchip led to even more technological advances in imaging capabilities. Meanwhile, the price of machines began to drop, which brought ultrasound imaging to the masses. Doppler imaging became mainstream with the development of color Doppler imaging, spectral Doppler imaging, and continuous-wave Doppler imaging. These methods showcase the movement of blood within blood vessels. -
Ultrasounds More Common
They created it centered on an instrument that served the purpose of detecting the flaws in the industrial ships. However, in the 1970s, it became widely used. -
Kazunori Baba
Kazunori Baba at the University of Tokyo developed 3-D scanning, and patients began to bring their partners and family members to ultrasound appointments, viewing them as exciting life events. To this day, patients receive ultrasound images following their appointments, which is said to contribute to maternal-fetal bonding -
Ultrasound in Critical Care
Daniel Lichtenstein introduced lung and general sonography in intensive care units. -
Power Doppler
Power Doppler imaging is added to the mix, which allows for even more detailed studies. -
Mobile Sonography
Ultrasound technology never stopped improving and today ultrasound images can be obtained not only with laptop ultrasound scanners but also with wireless probes and mobile phones. -
First special Issue
The first special issue, published in January 2021, contains four articles by Francis Duck and Kevin Martin which first document the work of pioneering physicists in the first 50 years of development, followed by three articles on the development of ultrasound metrology using thermometry, radiation force and hydrophones.