COMPARATIVE ANALYSIS OF TRADITIONAL ENDOSCOPY AND NARROW-BAND IMAGING (NBI, ISCAN) IN GASTROINTESTINAL PATHOLOGY DETECTION

Introduction. Endoscopy is the primary method for visualizing the mucous membranes of the gastrointestinal tract, used for diagnosing and treating diseases. Traditional endoscopy, based on white-light optics, provides images of the examined tissues but has limited ability to detect early neoplastic changes. Advances in endoscopic methods have led to the development of narrow-band imaging (NBI, i-SCAN), which enhances visualization of vascular and tissue structures, thereby increasing diagnostic accuracy [1, 2].