Transœsophageal Pulsed Doppler Echocardiography

National Institute of Diabetes and Digestive and Kidney Diseases workshop on EUS and related technologies: history of EUS

“…1,2 The brief history of EUS summarized in the first sentence, however, contains inaccuracies that cloud this history detailed in our recent reviews. 3,4 First, Hisanaga et al 5,6 did not use optic endoscopes. The first reference, a letter to the editor, describes transesophageal Doppler recordings of cardiac structures obtained by swallowing a Doppler probe mounted on a flexible shaft.…”

“…The first reference, a letter to the editor, describes transesophageal Doppler recordings of cardiac structures obtained by swallowing a Doppler probe mounted on a flexible shaft. 5 A second study involved transgastric US of abdominal structures by swallowing an "intragastric rotating sonographic scanner" mounted on a "flexible metal tube containing a flexible rotating shaft." 6 Second, EUS instruments used by DiMagno et al were not "rigid" endoscopes.…”

Recent development of endoscopic ultrasound-guided biliary drainage

“…It has been more than 40 years since Hisanaga et al 1,2 from Japan reported on the first use of ultrasound scanning through the digestive tract, followed shortly afterwards by reports and papers of DiMagno et al 3 and Strohm et al 4 exploring further utilization of endoscopic ultrasound in this area. Endoscopic ultrasound has undergone tremendous development in the following decades in technology and image resolution, thus providing a reliable diagnostic tool for numerous pathologies.…”

EUS and related technologies for the diagnosis and treatment of pancreatic disease: research gaps and opportunities—Summary of a National Institute of Diabetes and Digestive and Kidney Diseases workshop

“…EUS became commercially available in the 1980s with the seminal publications by DiMagno et al 1 and Hisanaga et al 2,3 demonstrating the feasibility and safety of mounting an US transducer on the tip of a rigid endoscope and using this to examine the GI wall and extraluminal space. Since then, EUS with the addition of FNA has established itself as the premier diagnostic tool for staging many GI luminal cancers, evaluating intramural lesions, and assessing the immediate extraluminal space.…”