Electronic endoscope is the first generation of hard-and second-generation fiber-optic endoscopy after endoscopic third-generation endoscope. Mainly by endoscopic electronic endoscope (endoscopy), Information Systems Center TV (video information system center) and television monitor (televisio monitor) composed of three main parts. It mainly depends on the imaging front-end equipment are mirror images of micro-sensors (charge coupled device, CCD), CCD camera as a micro-processor image after image processing, displayed on the TV monitor screen. Than ordinary fiber-optic endoscopic image clarity, color fidelity, higher resolution, but also watch for people at the same time.

Endoscopy of the structure: the composition of the electronic endoscope in addition to endoscopic and television information system and the main part of the three television monitors, but also with a number of auxiliary devices such as video recorders, cameras, as well as to attract all kinds of information to enter the keyboard and the diagnosis and treatment of a variety of disposal of used appliances.

Endoscopic principle: the principle of electronic endoscopic imaging is the use of television equipment information center of the light emitted by light sources, the guided endoscopic optical fiber light into body cavity inspection, CCD image sensor receive body cavity mucosa surface reflection of light, this light into electrical signals, then the signal transmission through the wires to the TV Information Center, Information Center, another of those TV signals through the storage and handling, and finally transmitted to the TV monitor on the screen Color of mucosa examined images of the organ. The use of the world, there are two CCD image sensor, the specific manner in the formation of color images is slightly different.

Diagnostic value: the inspection technique is the best method of diagnosis of colorectal polyps with a high degree of diagnostic value, the correct diagnosis rate of greater than 92%, and preferable to biopsy under colonoscopy to clear the nature of the treatment could also intervene.