Transesophageal cross-sectional echocardiography

Serendipity and innovation: history and evolution of transthoracic echocardiography

“…After the description of the first experimental transesophageal probes in the 1970s (22), TEE became popular only after European investigators proved it was safe and clinically useful (23). The first attempts to perform TEE date back to 1980, when a 2D transducer was positioned on a fiber-optic endoscope (24). Again, it is interesting to notice how the widespread use of TEE could have never been possible without the technological development of smaller, more flexible, higher frequency probes allowing better resolution and fewer artifact interferences.…”

History of the evolution of echocardiography

“…In 1976, Frazin and colleagues [44], using M-mode technology, published the fist paper on transesophageal echocardiography. Hisanaga and colleagues [45] performed transesophageal echocardiography by placing a two-dimensional transducer on a fiberoptic enoscope and published their work in American Heart Journal in 1980. In the same year, Hanrath and colleagues [46] attached a phased-array ultrasound transducer to the tip of a flexible gastroscope, and the modern era of transesophageal echocardiography began.…”

Short History of The Development of Echocardiograpy With Special Reference to That in Japan (2)

“…They used at first the M-mode and then the phased array. In the same year, K. Hisanaga and coworkers [113][114][115] also reported their own type of transesophageal approach, a high-speed mechanical scan, using the gastroscope structure. It was noteworthy that although Hisanaga was a physician, his transesophageal probe was his own creation.…”