Could near focus endoscopy, narrow-band imaging, and acetic acid improve the visualization of microscopic features of stomach mucosa?

Figure 1 White light endoscopy from the point of view of the first observer. A and B: White light endoscopy (WLE)-1a pattern and WLE-2a pattern shows a clear appearance of the regular arrangement of collecting venules (RAC) (white arrow); C: WLE-b pattern shows a less clear appearance of the RAC (white arrow); D: WLE-c pattern shows the absence of the RAC.