Effect of brush rinse on the diagnostic accuracy of biliary stricture evaluation: A multicenter trial

Figure 2 Preparation of the specimens. A: Brush-wash specimens: The brush head was cut off the wire, placed in the medium, and centrifuged at 3000 r/m for 1 minute; B: Sheath-rinse specimens: The contents of the sheath were rinsed into the medium using a 10-cc syringe, and the specimens were centrifuged at 3000 r/m for 1 minute to isolate the cell pellet.