VIST (Video intelligent staining technology) is used to the diagnosis of GAVE as the form of ectatic vessels in the antrum in instead of erosions in the antrum by White light endoscopy which can mislead the diagnosis to Portal hypertension gastropathy. Targeted biopsies are taken and examined histopathologically in order to see if matching with VIST view. In addition, CD61 is used to highlight the diagnosis for more confirmation. CD61 is an immunohistochemistry platelets marker.

