Comparison of Tissue Architectural Changes between Radiofrequency Ablation and Cryospray Ablation in Barrett’s Esophagus Using Endoscopic Three-Dimensional Optical Coherence Tomography

Figure 1

3D-OCT orthoplanes from the BE region before RFA treatment. (a) The en face orthoplane is located at a depth of 500 𝜇m. The colored dotted lines indicate location of complementary orthoplanes (b) and (c). Red arrows indicate the locations of the BE glands. (b) The cross-sectional YZ orthoplane shows the epithelium (ep), lamina propria (lp), and muscularis mucosa (mm). (c) The cross-sectional XZ orthoplane shows the hyposcattering feature of the BE glands on top of the lp/mm layer.