Abstract
This study examined the diagnostic accuracy of magnifying endoscopy with narrow-band imaging (ME-NBI) in the diagnosis of colorectal polyps of approximately 10 mm for adaptation in day surgery and evaluated its usefulness in the clinical setting. Subjects included those who underwent endoscopic resection, amounting to 112 lesions, in our clinic from January 2013 to June 2014. Vascular pattern was classified as normal, faint, network, dense, irregular, sparse, and others. When analyzing the correlation between vascular pattern and pathological diagnosis, we found the sensitivity, specificity, and diagnostic accuracy of a faint pattern, as an indicator of hyperplastic polyps, to be 81.8%, 97.9%, and 92.0%, respectively. Similarly, these values for the network and dense patterns, as an indicator of neoplastic lesions, were 94.6%, 73.7%, and 91.1%, respectively. In conclusion, ME-NBI showed a high diagnostic accuracy for diagnosing colorectal polyps and can therefore be considered an effective modality to increase the accuracy of screening colonoscopy in a clinic.
