Endoscopic images of a primary circumferential ablation of Barrett's esophagus using the Barrx360 system

(A) Long-segment Barrett's esophagus with high-grade dysplasia.
(B) The Barrx360 catheter is introduced and inflated at the upper end of the Barrett's segment.
(C) The whitish coagulum resulting from ablation.
(D) After ablation of the whole Barrett's segment and cleaning of the electrode and ablation zone, the catheter is reintroduced for a second ablation pass.
(E) The second ablation pass results in a tan-colored ablation zone.
(F) Treatment effect after two circumferential ablation passes.