Figure 1
SR-PCI of the gastric mucosa layer. (a) In-line holography displaying the gastric pit (white arrow), gastric groove (double arrow) and gastric area enclosed by gastric grooves. (b) DEI demonstrating the gastric pit and blood vessels in the submucosa layer (low left). (c) Conventional X-ray absorption imaging of the gastric mucosa coated by barium sulfate, which could only demonstrate the gastric grooves. (d) Light-microscope images displaying the shape of the gastric pit, as for SR-PCI but more vague than the latter. |