1992 Volume 34 Issue 4 Pages 784-791
The utility of magnifying observation has been recognized since the era of fiberscope. During the last 6 years since the development of electronic endoscope, objective diagnosis has been gradually realized by the introduction of image processing and analysis. A newly developed magnifying electronic colonoscope, CF-V200HM, is equipped with a high resolu-tion image of one hundred thousand pixels like CF-V200, and with a zooming mechanism of upto 50 magnifications, at the same time. We used this scope for the observation of 28 colorectal elevated lesions, and the images were analysed by computer. The manipulation of the scope and the endoscopic observation were similar to those of the ordinary electronic colonoscope. By observation with 50 magnifications, individual pits could be clearly recognized, and the classification of the pit pattern has become more reliable. Further-more, by the introduction of enhancement in color space into the magnifying images, the contrast of the demarcation of pits has become clearer. These achievements are consid-ered to contribute to the realization of objective diagnosis.
