Preliminary study of magnetically controlled capsule gastroscopy for diagnosing superficial gastric neoplasia

• Published in: Digestive and liver disease Vol. 50; no. 10; pp. 1041 - 1046
• Main Authors: Qian, Yang-Yang, Zhu, Shu-Guang, Hou, Xi, Zhou, Wei, An, Wei, Su, Xiao-Ju, McAlindon, Mark Edward, Li, Zhao-Shen, Liao, Zhuan
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier Ltd 01.10.2018
• Subjects: Aged; Capsule Endoscopy - methods; Endoscopic Mucosal Resection - methods; Female; Gastric cancer; Gastric Mucosa - pathology; Gastroscopy - methods; Humans; Magnetically controlled capsule endoscopy (MCCG); Magnetics; Male; Middle Aged; Neoplasm Grading; Prospective Studies; Screening; Sensitivity and Specificity; Stomach Neoplasms - diagnosis; Superficial gastric neoplasia; Tertiary Care Centers; Screening; Superficial gastric neoplasia; Gastric cancer; Magnetically controlled capsule endoscopy (MCCG)
• ISSN: 1590-8658; 1878-3562; 1878-3562
• DOI: 10.1016/j.dld.2018.04.013

Magnetically controlled capsule gastroscopy (MCCG) is a newly developed non-invasive method designed for gastric examination. Although favorable diagnostic accuracy has been reported, there is little if any data about its ability to diagnose gastric cancer. To compare the detectability of superficial gastric neoplasia by MCCG and gastroscopy. This study was a self-controlled comparison study. Ten subjects diagnosed with superficial gastric neoplasia and scheduled to undergo endoscopic submucosal dissection (ESD) at a tertiary hospital were prospectively invited for an MCCG examination. The diagnostic agreement of MCCG, ESD and pathology were compared, including location, size and endoscopic appearance of the lesions. Of the 10 enrolled patients, 6 were confirmed as having early gastric cancer/high-grade intraepithelial neoplasia, 2 gastric low-grade intraepithelial neoplasia (LGIN), 1 tubular adenoma with LGIN and 1 neuroendocrine tumor. The per-patient and per-lesion sensitivities of MCCG for superficial gastric neoplasia detection were 100% and 91.7%. Location and size of the lesions were compared favorably to gastroscopy whilst one cardiac lesion was missed. Endoscopic appearances of these lesions observed on MCCG and EGD demonstrated good consistency. No adverse events were observed. With good gastric preparation and careful examination of stomach, MCCG is able to detect superficial gastric neoplasms.