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Upper gastrointestinal endoscopy 

Upper gastrointestinal endoscopy
Chapter:
Upper gastrointestinal endoscopy
Author(s):

Adrian R.W. Hatfield

DOI:
10.1093/med/9780199204854.003.150302
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date: 21 October 2017

Flexible fibre optic endoscopes were developed in the mid-1960s, leading to the growth of gastrointestinal endoscopy as we now know it. The recent availability of cheaper, miniaturized colour chips has led to the development of video endoscopes, providing an excellent clear view that does not deteriorate with age (as it does with fibre optic devices). With improvements in software, the endoscopic video image can be magnified: modern instruments will zoom up to 25 × magnification, and mucosal detail can also be enhanced electronically so that small lesions a few millimetres in size can be seen quite clearly. The modern video endoscope image can be instantly printed out and archived digitally on a computer system....

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