Evidence map›Paper›PMID 36781156›Full record

Trial reportEndoscopy2023

Artificial intelligence for diagnosing neoplasia on digital cholangioscopy: development and multicenter validation of a convolutional neural network model.

Carlos Robles-Medranda, Jorge Baquerizo-Burgos, Juan Alcivar-Vasquez, Michel Kahaleh, Isaac Raijman, Rastislav Kunda, Miguel Puga-Tejada, Maria Egas-Izquierdo, Martha Arevalo-Mora, Juan C Mendez and 11 more

Abstract readMulticenter StudyClinical Trial
In one paragraph

Trial report in Endoscopy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

  1. Article
  2. Advances in Diagnosis and Treatment With Cholangiopancreatoscopy.Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society · 2026
    Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Review
  9. Review
  10. Diagnostic Approach to Biliary Strictures.Diagnostics (Basel, Switzerland) · 2025
    Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. The Role of Cholangioscopy in Biliary Diseases.Diagnostics (Basel, Switzerland) · 2023
    Review
  17. Article
  18. Review
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

21 authors.

Carlos Robles-MedrandaGastroenterology, Instituto Ecuatoriano de Enfermedades Digestivas (IECED), Guayaquil, Ecuador.ORCID 0000-0003-2434-3369
Jorge Baquerizo-BurgosGastroenterology, Instituto Ecuatoriano de Enfermedades Digestivas (IECED), Guayaquil, Ecuador.
Juan Alcivar-VasquezGastroenterology, Instituto Ecuatoriano de Enfermedades Digestivas (IECED), Guayaquil, Ecuador.
Michel KahalehGastroenterology, Robert Wood Johnson Medical School Rutgers University, New Brunswick, New Jersey, United States.ORCID 0000-0003-0836-6114
Isaac RaijmanHouston Methodist Hospital, Houston, Texas, United States.
Rastislav KundaDepartment of Advanced Interventional Endoscopy, Universitair Ziekenhuis Brussel (UZB)/Vrije Universiteit Brussel (VUB), Brussels, Belgium.ORCID 0000-0001-5632-2402
Miguel Puga-TejadaGastroenterology, Instituto Ecuatoriano de Enfermedades Digestivas (IECED), Guayaquil, Ecuador.
Maria Egas-IzquierdoGastroenterology, Instituto Ecuatoriano de Enfermedades Digestivas (IECED), Guayaquil, Ecuador.
Martha Arevalo-MoraGastroenterology, Instituto Ecuatoriano de Enfermedades Digestivas (IECED), Guayaquil, Ecuador.
Juan C Mendezmdconsgroup, Artificial Intelligence Department, Guayaquil, Ecuador.
Amy TybergGastroenterology, Robert Wood Johnson Medical School Rutgers University, New Brunswick, New Jersey, United States.
Avik SarkarGastroenterology, Robert Wood Johnson Medical School Rutgers University, New Brunswick, New Jersey, United States.
Haroon ShahidGastroenterology, Robert Wood Johnson Medical School Rutgers University, New Brunswick, New Jersey, United States.
Raquel Del Valle-ZavalaGastroenterology, Instituto Ecuatoriano de Enfermedades Digestivas (IECED), Guayaquil, Ecuador.
Jorge RodriguezGastroenterology, Instituto Ecuatoriano de Enfermedades Digestivas (IECED), Guayaquil, Ecuador.
Ruxandra C MerfeaGastroenterology, Instituto Ecuatoriano de Enfermedades Digestivas (IECED), Guayaquil, Ecuador.
Jonathan Barreto-PerezGastroenterology, Instituto Ecuatoriano de Enfermedades Digestivas (IECED), Guayaquil, Ecuador.
Gabriela Saldaña-PazmiñoGastroenterology, Hospital Clínico San Carlos, Madrid, Spain.
Daniel Calle-LoffredoGastroenterology, Instituto Ecuatoriano de Enfermedades Digestivas (IECED), Guayaquil, Ecuador.
Haydee AlvaradoGastroenterology, Instituto Ecuatoriano de Enfermedades Digestivas (IECED), Guayaquil, Ecuador.
Hannah P LukashokGastroenterology, Instituto Ecuatoriano de Enfermedades Digestivas (IECED), Guayaquil, Ecuador.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe aimed to develop a convolutional neural network (CNN) model for detecting neoplastic lesions during real-time digital single-operator cholangioscopy (DSOC) and to clinically validate the model through comparisons with DSOC expert and nonexpert endoscopists.

methodsIn this two-stage study, we first developed and validated CNN1. Then, we performed a multicenter diagnostic trial to compare four DSOC experts and nonexperts against an improved model (CNN2). Lesions were classified into neoplastic and non-neoplastic in accordance with Carlos Robles-Medranda (CRM) and Mendoza disaggregated criteria. The final diagnosis of neoplasia was based on histopathology and 12-month follow-up outcomes.

resultsIn stage I, CNN2 achieved a mean average precision of 0.88, an intersection over the union value of 83.24 %, and a total loss of 0.0975. For clinical validation, a total of 170 videos from newly included patients were analyzed with the CNN2. Half of cases (50 %) had neoplastic lesions. This model achieved significant accuracy values for neoplastic diagnosis, with a 90.5 % sensitivity, 68.2 % specificity, and 74.0 % and 87.8 % positive and negative predictive values, respectively. The CNN2 model outperformed nonexpert #2 (area under the receiver operating characteristic curve [AUC]-CRM 0.657 vs. AUC-CNN2 0.794,

conclusionsThe proposed CNN model distinguished neoplastic bile duct lesions with good accuracy and outperformed two nonexpert and one expert endoscopist.

Indexed as

Artificial IntelligenceNeoplasmsHumansNeural Networks, ComputerPredictive Value of TestsROC Curve

Identifiers

PMID36781156
PMCPMC10374349

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.