Stomach

Gastric cancer

This video sequence demonstrates to observe characteristic of surface pattern with i-scan SE then switch to i-scan OE to observe vessel pattern. i-scan OE brought up better assessment of vessel as compared with chromo endoscopy. Following pathological result concluded mucosal cancer 8mm in size.

Courtesy of Prof.Tomoki Michida, Teikyo University, Japan

Gastric cancer

This video sequence demonstrates to observe characteristic of surface pattern with i-scan SE then switch to i-scan OE to observe vessel pattern and demarcation line of lesion without help of magnified scopes. Following pathological result concluded gastric cancer invaded slightly the submucosa.

Courtesy of Prof.Tomoki Michida, Teikyo University, Japan

Early gastric cancer

In this video clip i-scan is used to both detect a lesion and to get a clear idea of its margins. Based on i-scan and additional staining with indigo carmine the lesion`s margins were marked and an endoscopic submucosal dissection performed.

Courtesy of Dr. Michael Häfner, St. Elisabeth Krakenhaus, Austria

Hyperplastic gastric polyp

This patient presented with anaemia.

At endoscopy the patient was found to have a large hyperplastic polyp in the stomach. This video sequence demonstrates the characteristic PIT pattern of the hyperplastic lesion using PENTAX HD+ and i-scan enhancement.

This image enhancement was used to direct YAG laser therapy to this area to prevent further blood loss.

Courtesy of Dr. Rehan Haidry, UCLH, UK

Gastric high grade dysplasia

This patient was followed up for a gastric ulcer that had caused a large upper GI bleed. At endoscopy there is a dysplastic antral lesion seen on Pentax enhanced imaging. This lesion was removed by Endoscopic Submucosal Resection.

Courtesy of Dr. Rehan Haidry, UCLH, UK