Overview of Endoscopic Features of Gastrointestinal Pathology (Colon)
Advances in endoscopic imaging technologies and techniques in recent decades have revolutionized the detection, diagnosis, and therapy of gastrointestinal pathology. New-generation endoscope systems produce high-definition images with over a million pixels that are three times higher in resolution than standard-definition images produced by older-generation endoscope systems. In addition, endoscopic image contrast can be enhanced with stains, and electronic imaging technologies such as narrow-band imaging (NBI, Olympus Corporation, Tokyo, Japan). These technologies are known collectively as “image-enhanced endoscopy,” which are known to improve the detection and facilitate real-time optical diagnosis or characterization of early gastrointestinal neoplasia. Optical diagnosis therefore improves tissue sampling for subsequent histologic evaluation and also enables real-time selection of appropriate endoscopic therapy for early gastrointestinal neoplasia while and avoiding unnecessary surgery. In this chapter, we present an overview of endoscopic features of colorectal pathology.
KeywordsColonoscopy Optical diagnosis Colorectal Narrow-band imaging Adenoma
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