Effective use of the Japan Narrow Band Imaging Expert Team classification based on diagnostic performance and confidence level

Figure 2 The Japan Narrow Band Imaging Expert Team classification. ¹If visible, the caliber in the lesion is similar to surrounding normal mucosa. ²Micro-vessels are often distributed in a punctate pattern and well-ordered reticular or spiral vessels may not be observed in depressed lesions. ³Deep submucosal invasive cancer may be included.