Evidence map›Paper›PMID 37256409›Full record

ArticleJournal of gastroenterology2023

Computer-aided demarcation of early gastric cancer: a pilot comparative study with endoscopists.

Satoko Takemoto, Keisuke Hori, Sakai Yoshimasa, Masaomi Nishimura, Keiichiro Nakajo, Atsushi Inaba, Maasa Sasabe, Naoki Aoyama, Takashi Watanabe, Nobuhisa Minakata and 3 more

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In one paragraph

Article in Journal of gastroenterology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 3 institutions in 1 country.

Satoko TakemotoImage Processing Research Team, Center for Advanced Photonics, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama, 351-0198, Japan.ORCID http://orcid.org/0000-0003-0258-6589
Keisuke HoriDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan.
Sakai YoshimasaImage Processing Research Team, Center for Advanced Photonics, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama, 351-0198, Japan.
Masaomi NishimuraImage Processing Research Team, Center for Advanced Photonics, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama, 351-0198, Japan.
Keiichiro NakajoDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan.
Atsushi InabaDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan.
Maasa SasabeDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan.
Naoki AoyamaDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan.
Takashi WatanabeDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan.
Nobuhisa MinakataDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan.
Hiroaki IkematsuDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan.
Hideo YokotaImage Processing Research Team, Center for Advanced Photonics, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama, 351-0198, Japan. hyokota@riken.jp.ORCID http://orcid.org/0000-0003-1395-309X
Tomonori YanoDepartment of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan.
National Cancer Center Hospital East · JPRIKEN Center for Advanced Photonics · JPTsuyama Chuo Hospital · JP

Funding

Japan Society for the Promotion of Science JP21K12742The National Cancer Center research and development fund 2020-A-10The National Cancer Center research and development fund 29-A-10
6 · The paper itself

Abstract

backgroundPrecise area diagnosis of early gastric cancer (EGC) is critical for reliable endoscopic resection. Computer-aided diagnosis (CAD) shows strong potential for detecting EGC and reducing cancer-care disparities caused by differences in endoscopists' skills. To be used in clinical practice, CAD should enable both the detection and the demarcation of lesions. This study proposes a scheme for the detection and delineation of EGC under white-light endoscopy and validates its performance using 1-year consecutive cases.

methodsOnly 300 endoscopic images randomly selected from 68 consecutive cases were used for training a convolutional neural network. All cases were treated with endoscopic submucosal dissection, enabling the accumulation of a training dataset in which the extent of lesions was precisely determined. For validation, 462 cancer images and 396 normal images from 137 consecutive cases were used. From the validation results, 38 randomly selected images were compared with those delineated by six endoscopists.

resultsSuccessful detections of EGC in 387 cancer images (83.8%) and the absence of lesions in 307 normal images (77.5%) were achieved. Positive and negative predictive values were 81.3% and 80.4%, respectively. Successful detection was achieved in 130 cases (94.9%). We achieved precise demarcation of EGC with a mean intersection over union of 66.5%, showing the extent of lesions with a smooth boundary; the results were comparable to those achieved by specialists.

conclusionsOur scheme, validated using 1-year consecutive cases, shows potential for demarcating EGC. Its performance matched that of specialists; it might therefore be suitable for clinical use in the future.

Indexed as

Endoscopic Mucosal ResectionStomach NeoplasmsComputersEarly Detection of CancerGastroscopyHumansPredictive Value of TestsComputer-aided diagnosisDelineation of horizontal extentEarly gastric cancerPrecise area demarcationWhite light endoscopy

Identifiers

PMID37256409
OpenAlexW4378760228

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.