Artificial intelligence versus expert endoscopists for diagnosis of gastric cancer in patients who underwent upper gastrointestinal endoscopy

Endoscopy ◽  
2021 ◽  
Author(s):  
Ryota Niikura ◽  
Tomonori Aoki ◽  
Satoki Shichijo ◽  
Atsuo Yamada ◽  
Takuya Kawahara ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Gastric Cancer ◽  
Confidence Interval ◽  
Cancer Diagnosis ◽  
Gastrointestinal Endoscopy ◽  
Upper Gastrointestinal Endoscopy ◽  
Retrospective Data ◽  
Diagnosis Rate ◽  
Upper Gastrointestinal

Introduction and aims: To compare endoscopy gastric cancer images diagnosis rate between artificial intelligence (AI) and expert endoscopists. Patients and methods: We used the retrospective data of 500 patients, including 100 with gastric cancer, matched 1:1 to diagnosis by AI or expert endoscopists. We retrospectively evaluated the non-inferiority (prespecified margin 5%) of the per-patient rate of gastric cancer diagnosis by AI and compared the per-image rate of gastric cancer diagnosis. Results: Gastric cancer was diagnosed in 49 of 49 patients (100%) in the AI group and 48 of 51 patients (94.12%) in the expert endoscopist group (difference 5.88, 95% confidence interval: −0.58 to 12.3). The per-image rate of gastric cancer diagnosis was higher in the AI group (99.87%, 747/748 images) than in the expert endoscopist group (88.17%, 693/786 images) (difference 11.7%). Conclusions: Non inferiority of the rate of gastric cancer diagnosis by AI was demonstrated but superiority is not demonstrated.

Longer Examination Time Improves Detection of Gastric Cancer During Diagnostic Upper Gastrointestinal Endoscopy

2015 ◽  
Vol 13 (3) ◽  
pp. 480-487.e2 ◽  
Author(s):  
Jun Liang Teh ◽  
Jin Rong Tan ◽  
Linus Jian Fa Lau ◽  
Nakul Saxena ◽  
Agus Salim ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Gastrointestinal Endoscopy ◽  
Upper Gastrointestinal Endoscopy ◽  
Examination Time ◽  
Upper Gastrointestinal

Missing rate for gastric cancer during upper gastrointestinal endoscopy

2016 ◽  
Vol 28 (9) ◽  
pp. 1041-1049 ◽  
Author(s):  
Ana Rita Pimenta-Melo ◽  
Matilde Monteiro-Soares ◽  
Diogo Libânio ◽  
Mário Dinis-Ribeiro
Keyword(s):  
Gastric Cancer ◽  
Gastrointestinal Endoscopy ◽  
Upper Gastrointestinal Endoscopy ◽  
Upper Gastrointestinal

scholarly journals Adenocarcinoma intramucoso en pólipo hiperplásico gástrico con resolución endoscópica

2021 ◽  
Vol 113 (2) ◽  
pp. 253-257
Author(s):  
José G. Yaryura Montero ◽  
◽  
Mario A. Cafaro ◽  
Ricardo A. Gigena ◽  
Ramiro X. Casa ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Gastrointestinal Endoscopy ◽  
Hyperplastic Polyp ◽  
Endoscopic Polypectomy ◽  
Upper Gastrointestinal Endoscopy ◽  
Hyperplastic Polyps ◽  
Review Of The Literature ◽  
Invasive Treatment ◽  
Upper Gastrointestinal ◽  
Gastric Hyperplastic Polyp

The prevalence of gastric polyps during upper gastrointestinal endoscopies is 6%, and 17% correspond to gastric hyperplastic polyps. They are usually incidentally found during upper gastrointestinal endoscopy; yet, large polyps may become symptomatic. The prevalence of gastric cancer in gastric hyperplastic polyps is 2.1%. The aim of this paper is to describe an atypical presentation of this disease with review of the literature. A 73-year-old male patient with anemia and subsequent diagnosis of early gastric cancer in a gastric hyperplastic polyp was treated with endoscopic polypectomy with endoloop.Minimally invasive treatment by endoscopic resection is sufficient in this type of patients.

scholarly journals Artificial intelligence and upper gastrointestinal endoscopy: Current status and future perspective

2019 ◽  
Vol 31 (4) ◽  
pp. 378-388 ◽  
Author(s):  
Yuichi Mori ◽  
Shin‐ei Kudo ◽  
Hussein E. N. Mohmed ◽  
Masashi Misawa ◽  
Noriyuki Ogata ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Gastrointestinal Endoscopy ◽  
Current Status ◽  
Future Perspective ◽  
Upper Gastrointestinal Endoscopy ◽  
Upper Gastrointestinal

Tu1066 Longer Examination Time Improves Detection of Gastric Cancer During Diagnostic Upper Gastrointestinal Endoscopy

2014 ◽  
Vol 146 (5) ◽  
pp. S-742-S-743
Author(s):  
Jun Liang Teh ◽  
Linus Lau ◽  
Jin-Rong Tan ◽  
Nakul Saxena ◽  
Agus Salim ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Gastrointestinal Endoscopy ◽  
Upper Gastrointestinal Endoscopy ◽  
Examination Time ◽  
Upper Gastrointestinal

Clinical Outcomes of Recurrent Gastric Cancer Detected by Upper Endoscopy after Curative Total Gastrectomy

2016 ◽  
Vol 103 (2) ◽  
pp. 164-169
Author(s):  
Hee Kyong Na ◽  
Ji Yong Ahn ◽  
Jeong Hoon Lee ◽  
Do Hoon Kim ◽  
Kee Don Choi ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Total Gastrectomy ◽  
Clinical Outcomes ◽  
Gastrointestinal Endoscopy ◽  
Medical Center ◽  
Interquartile Range ◽  
Upper Gastrointestinal Endoscopy ◽  
Endoscopic Findings ◽  
Recurrent Gastric Cancer ◽  
Upper Gastrointestinal

Background/aims Endoscopically detected tumor recurrence after curative total gastrectomy is very rare. We reviewed the clinicopathological and endoscopic findings together with the clinical outcomes of these patients. Methods Seventeen patients with recurrent gastric cancer detected by upper gastrointestinal endoscopy who underwent curative total gastrectomy between January 1990 and May 2011 at the Asan Medical Center were analyzed retrospectively. Results Of the 17 patients, 5 were resectable at the time of diagnosis of recurrence and 12 were unresectable. The median interval between total gastrectomy and diagnosis of recurrence was 20.2 months (interquartile range 12.4-42.1 months). The tumors were located in the anastomotic area in 8 patients, in the proximal part of the afferent or efferent loop in 7, and in the stump of the afferent loop in 2 patients. With regard to the endoscopic findings, a mass was found in 8 cases, an ulcer in 2, stricture in 4, and nodularities in 3. Operations were performed in 3 patients, chemotherapy in 10 (including 2 receiving adjuvant chemotherapy), and conservative management in 6. Fourteen patients died from progression of the disease and the median survival period from recurrence for all 17 patients was 5.3 months (interquartile range 1.2-7.7 months). Conclusions Local recurrence of gastric cancer detected by upper gastrointestinal endoscopy after curative total gastrectomy has a poor prognosis.

Diagnosis of Gastric Cancer up to Three Years after Negative Upper Gastrointestinal Endoscopy

Endoscopy ◽  
1998 ◽  
Vol 30 (08) ◽  
pp. 669-674 ◽  
Author(s):  
O. Hosokawa ◽  
S. Tsuda ◽  
E. Kidani ◽  
K. Watanabe ◽  
Y. Tanigawa ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Gastrointestinal Endoscopy ◽  
Upper Gastrointestinal Endoscopy ◽  
Upper Gastrointestinal
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