Effectiveness of circumferential endoscopic mucosal resection with a novel tissue-anchoring device

Figure 1 Simulation platform using the EASIE-R simulator with an ex-vivo porcine stomach specimen.

Figure 2 3 cm × 3 cm target lesions created by methylene blue tattoo in the mucosa of fresh ex-vivo stomachs.

Figure 3 Endoscopic images. A: Circumferential resection with the IT knife after injection; B: The separation of the circumferential cutting area being carefully inspected.

Figure 4 Endoscopic images. A: The mucosal retraction with regular forceps (unipolar traction); B: Mucosal retraction with the tissue-anchoring device (retracting tissue from three anchor points).

Figure 5 The snare being subsequently closed and the specimen resected by application of electrocautery.

Figure 6 The overall mean total procedure time. A: Overall mean dissection time; B: Mean total procedure time. EMR: Endoscopic mucosal resection; ESD: Endoscopic submucosal dissection.

Figure 7 Detail of the novel tissue-anchoring device.