GastroFlex/ColoFlex CholangioFlex AQ-Flex 19 Procedure EDG/Colonoscopy ERCP EUS-FNA Accessory Channel 2.8 mm 1.2 mm 19 G FNA needle Depth (um) 55-65 40-70 40-70 Field of View (um) 240 320 325 Lateral Resolution (um) 1 3.5 3.5

Table 1: Characteristics of pCLE probes