Gastroscopic Panoramic View: Application to Automatic Polyps Detection under Gastroscopy

Abstract

Endoscopic diagnosis is an important means for gastric polyp detection. In this paper, a panoramic image of gastroscopy is developed, which can display the inner surface of the stomach intuitively and comprehensively. Moreover, the proposed automatic detection solution can help doctors locate the polyps automatically and reduce missed diagnosis. The main contributions of this paper are firstly, a gastroscopic panorama reconstruction method is developed. The reconstruction does not require additional hardware devices and can solve the problem of texture dislocation and illumination imbalance properly; secondly, an end-to-end multiobject detection for gastroscopic panorama is trained based on a deep learning framework. Compared with traditional solutions, the automatic polyp detection system can locate all polyps in the inner wall of the stomach in real time and assist doctors to find the lesions. Thirdly, the system was evaluated in the Affiliated Hospital of Zhejiang University. The results show that the average error of the panorama is less than 2 mm, the accuracy of the polyp detection is 95%, and the recall rate is 99%. In addition, the research roadmap of this paper has guiding significance for endoscopy-assisted detection of other human soft cavities.

Diagnostic accuracy of artificial intelligence for detecting gastrointestinal luminal pathologies: A systematic review and meta-analysis

“…At least one dataset used in 16 (21.9%) studies, was a publicly available database (34, 37-39, 42, 43, 47, 50, 54, 58, 60, 67, 68, 71, 76, 81). Sixty three (86.3%) studies used their own data (10-14, 17, 25-36, 38-41, 44-46, 48, 49, 51-53, 55-59, 61-66, 69, 70, 72-91), while 18 (28.6%) collected data prospectively (11,13,26,27,32,35,38,39,45,55,56,59,65,70,73,74,80,87).…”

“…Fifty-six studies (76.7%) had a high risk of bias in patient selection (11-13, 17, 25-27, 29-31, 34, 36-39, 41-44, 46, 47, 50-54, 57, 58, 60-72, 74-79, 81, 83-86, 88-91), mostly due to the case-control study design (n = 54, 74%) (11-13, 17, 25-27, 29-31, 34, 36-39, 41-44, 46, 47, 50-54, 57, 58, 60-64, 66-72, 75-79, 81, 83-86, 88-91). Two studies had low risk of bias for patient selection because of random participant sampling, and due to appropriate exclusion of participants (55,87), while 15 studies (20.5%) did not provide sufficient information for risk classification (10,14,28,32,33,35,40,45,48,49,56,59,73,80,10.3389/fmed.2022.1018937 (10,17,(87)(88)(89)(90)(91). Of these, 31 studies (86.1%) conducted external validation and were included in the meta-analysis (10,17,.…”

Analysis of gastroscopy results among healthy people undergoing a medical checkup: a retrospective study

“…Gastroscopy plays a major clinical role in the diagnosis of gastric diseases. The detection and diagnosis of upper gastrointestinal diseases through gastroscopic intervention was the most routine procedure [ 8 , 9 ]. The development of endoscopic technology has led to an increase in the diagnostic rate of early gastric cancer.…”

Analysis of gastroscopy results among healthy people undergoing a medical checkup: A retrospective study

“…Gastroscopy plays a major clinical role in the diagnosis of gastric diseases. The detection and diagnosis of upper gastrointestinal diseases by gastroscopic intervention was the most routine procedure [7][8] . The development of endoscopic technology has led to an increase in the diagnostic rate of early gastric cancer.…”