Efficacy and safety of three-dimensional magnetically assisted capsule endoscopy for upper gastrointestinal and small bowel examination

• Published in: PloS one 2024-05, Vol.19 (5), p.e0295774-e0295774
• Main Authors: Oh, Dong Jun, Lee, Yea Je, Kim, Sang Hoon, Chung, Joowon, Lee, Hyun Seok, Nam, Ji Hyung, Lim, Yun Jeong
• Format: Article
• Language: English
• Subjects: Abdomen; Adult; Aged; Biology and Life Sciences; Capsule Endoscopy - adverse effects; Capsule Endoscopy - methods; Care and treatment; Diagnosis; Effectiveness; Endoscopic surgery; Endoscopy; Esophagus; Female; Gastric cancer; Gastrointestinal diseases; Gastrointestinal system; Gastroscopy; Humans; Image acquisition; Image processing; Image quality; Image reconstruction; Imaging, Three-Dimensional - methods; Intestine; Intestine, Small; Intestine, Small - diagnostic imaging; Intestine, Small - pathology; Lesions; Male; Medical examination; Medical imaging; Medicine and Health Sciences; Middle Aged; Patients; Polyethylene glycol; Prospective Studies; Questionnaires; Reading; Research and Analysis Methods; Safety; Sensors; Small intestine; Software; Upper Gastrointestinal Tract - diagnostic imaging; Upper Gastrointestinal Tract - pathology
• ISSN: 1932-6203; 1932-6203
• DOI: 10.1371/journal.pone.0295774

Magnetically assisted capsule endoscopy (MACE) showed the feasibility for upper gastrointestinal examination. To further enhance the performance of conventional MACE, it is necessary to provide quality-improved and three-dimensional images. The aim of this clinical study was to determine the efficacy and safety of novel three-dimensional MACE (3D MACE) for upper gastrointestinal and small bowel examination at once. This was a prospective, single-center, non-randomized, and sequential examination study (KCT0007114) at Dongguk University Ilsan Hospital. Adult patients who visited for upper endoscopy were included. The study protocol was conducted in two stages. First, upper gastrointestinal examination was performed using 3D MACE, and a continuous small bowel examination was performed by conventional method of capsule endoscopy. Two hours later, an upper endoscopy was performed for comparison with 3D MACE examination. The primary outcome was confirmation of major gastric structures (esophagogastric junction, cardia/fundus, body, angle, antrum, and pylorus). Secondary outcomes were confirmation of esophagus and duodenal bulb, accuracy for gastric lesions, completion of small bowel examination, 3D image reconstruction of gastric lesion, and safety. Fifty-five patients were finally enrolled. The examination time of 3D MACE was 14.84 ± 3.02 minutes and upper endoscopy was 5.22 ± 2.39 minutes. The confirmation rate of the six major gastric structures was 98.6% in 3D MACE and 100% in upper endoscopy. Gastric lesions were identified in 43 patients during 3D MACE, and 40 patients during upper endoscopy (Sensitivity 0.97). 3D reconstructed images were acquired for all lesions inspected by 3D MACE. The continuous small bowel examination by 3D MACE was completed in 94.5%. 3D MACE showed better overall satisfaction (3D MACE 9.55 ± 0.79 and upper endoscopy 7.75 ± 2.34, p