The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Computerized diagnostic decision support systems–A comparative performance study of Isabel Pro vs. ChatGPT4
Abstract
Objectives: Validate the diagnostic accuracy of the Artificial Intelligence Large Language Model ChatGPT4 by comparing diagnosis lists produced by ChatGPT4 to Isabel Pro. Methods: This study used 201 cases, comparing ChatGPT4 to Isabel Pro. Systems inputs were identical. Mean Reciprocal Rank (MRR) compares the correct diagnosis’s rank between systems. Isabel Pro ranks by the frequency with which the symptoms appear in the reference dataset. The mechanism ChatGPT4 uses to rank the diagnoses is unknown. A Wilcoxon Signed Rank Sum test failed to reject the null hypothesis. Results: Both systems produced comprehensive differential diagnosis lists. Isabel Pro’s list appears immediately upon submission, while ChatGPT4 takes several minutes. Isabel Pro produced 175 (87.1 %) correct diagnoses and ChatGPT4 165 (82.1 %). The MRR for ChatGPT4 was 0.428 (rank 2.31), and Isabel Pro was 0.389 (rank 2.57), an average rank of three for each. ChatGPT4 outperformed on Recall at Rank 1, 5, and 10, with Isabel Pro outperforming at 20, 30, and 40. The Wilcoxon Signed Rank Sum Test confirmed that the sample size was inadequate to conclude that the systems are equivalent. ChatGPT4 fabricated citations and DOIs, producing 145 correct references (87.9 %) but only 52 correct DOIs (31.5 %). Conclusions: This study validates the promise of Clinical Diagnostic Decision Support Systems, including the Large Language Model form of artificial intelligence (AI). Until the issue of hallucination of references and, perhaps diagnoses, is resolved in favor of absolute accuracy, clinicians will make cautious use of Large Language Model systems in diagnosis, if at all.
Overview
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Cites
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Verification
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
In the citing paper
“In this study, we build on prior research, such as Bridges (2024), which identified a significant rate of hallucinated references and DOIs when evaluating ChatGPT's performance in generating diagnostic citations.”
From Geographic Variation in LLM DOI Fabrication: Cross-Country Analysis of Citation Accuracy Across Four Large Language Models (2025) · cites this paper as Bridges (2024)
In the citing paper
“Bridges (2024) observed that ChatGPT-4 produced only 52 correct DOIs (31.5%) out of 145 clinical references.”
From Geographic Variation in LLM DOI Fabrication: Cross-Country Analysis of Citation Accuracy Across Four Large Language Models (2025) · cites this paper as Bridges (2024)
Citations
Cites
Fabrication and errors in the bibliographic citations generated by ChatGPT
Walters, W. H., & Wilder, E. I. (2023) · Scientific Reports · doi:10.1038/s41598-023-41032-5 · Cited by 499
Use of gpt-4 to diagnose complex clinical cases
Eriksen, A. V., Möller, S., & Ryg, J. (2024) · NEJM AI · doi:10.1056/aip2300031 · Cited by 200
Hirosawa, T., Kawamura, R., Harada, Y., Mizuta, K., Tokumasu, K., Kaji, Y., Suzuki, T., & Shimizu, T. (2023) · JMIR Medical Informatics · doi:10.2196/48808 · Cited by 130
Research works printed but not linked: 14
- Wachter, RM, Brynjolfsson, E. Will generative artificial intelligence deliver on its promise in health care? JAMA 2024;33:65–9. https://doi.org/10.1001/jama.2023.25054. · DOI
- Liu, X, Song, Y, Lin, H, Xu, Y, Chen, C, Yan, C, et al.. Evaluating chatgpt as an adjunct for analyzing challenging case. Blood 2023;142:7273–. https://doi.org/10.1182/blood-2023-181518. · DOI
- Horiuchi, D, Tatekawa, H, Shimono, T, Walston, SL, Takita, H, Matsushita, S, et al.. Accuracy of ChatGPT generated diagnosis from patient’s medical history and imaging findings in neuroradiology cases. Neuroradiology 2024;66:73–9. https://doi.org/10.1007/s00234-023-03252-4. · DOI
- Dave, T, Athaluri, SA, Singh, S. Chatgpt in medicine: an overview of its applications, advantages, limitations, future prospects, and ethical considerations. Front Artif Intell 2023;6:1169595. https://doi.org/10.3389/frai.2023.1169595. · DOI · Paper page
- Kanjee, Z, Crowe, B, Rodman, A. Accuracy of a generative artificial intelligence model in a complex diagnostic challenge. JAMA 2023;330:78. https://doi.org/10.1001/jama.2023.8288. · DOI · Paper page
- Graber, ML, Mathew, A. Performance of a web-based clinical diagnosis support system for internists. J Gen Intern Med 2008;23:37–40. https://doi.org/10.1007/s11606-007-0271-8. · DOI
- Bond, WF, Schwartz, LM, Weaver, KR, Levick, D, Giuliano, M, Graber, ML. Differential diagnosis generators: an evaluation of currently available computer programs. J Gen Intern Med 2012;27:213–9. https://doi.org/10.1007/s11606-011-1804-8. · DOI
- Graber, ML. Reaching 95 %: decision support tools are the surest way to improve diagnosis now. BMJ Qual Saf 2022;31:415–8. https://doi.org/10.1136/bmjqs-2021-014033. · DOI
- Riches, N, Panagioti, M, Alam, R, Cheraghi-Sohi, S, Campbell, S, Esmail, A, et al.. The effectiveness of electronic differential diagnoses (DDX) generators: a systematic review and meta-analysis. PLoS One 2016;11:e0148991. https://doi.org/10.1371/journal.pone.0148991. · DOI
- Friedman, CP, Elstein, AS, Wolf, FM, Murphy, GC, Franz, TM, Heckerling, PS, et al.. Enhancement of clinicians’ diagnostic reasoning by computer-based consultation: a multisite study of 2 systems. JAMA 1999;282:1851. https://doi.org/10.1001/jama.282.19.1851. · DOI
- Sibbald, M, Monteiro, S, Sherbino, J, LoGiudice, A, Friedman, C, Norman, G. Should electronic differential diagnosis support be used early or late in the diagnostic process? A multicentre experimental study of Isabel. BMJ Qual Saf 2021. https://doi.org/10.1136/bmjqs-2021-013493. · DOI
- Fritz, P, Kleinhans, A, Raoufi, R, Sediqi, A, Schmid, N, Schricker, S, et al.. Evaluation of medical decision support systems (ddx generators) using real medical cases of varying complexity and origin. BMC Med Inf Decis Mak 2022;22:254. https://doi.org/10.1186/s12911-022-01988-2. · DOI
- Graber, ML. Reaching 95 %: decision support tools are the surest way to improve diagnosis now. BMJ Qual Saf 2022;31:415–8. https://doi.org/10.1136/bmjqs-2021-014033. · DOI
- Liu, J, Wang, C, Liu, S. Utility of chatgpt in clinical practice. J Med Internet Res 2023;25:e48568. https://doi.org/10.2196/48568. · DOI · Paper page
Cited by
Takita, H., Kabata, D., Walston, S. L., Tatekawa, H., Saito, K., Tsujimoto, Y., Miki, Y., & Ueda, D. (2025) · npj Digital Medicine · doi:10.1038/s41746-025-01543-z · Cited by 203
Kim, E., Kipchumba, F., & Min, S. (2025) · Publications · doi:10.3390/publications13040049 · Cited by 7
Metadata
- Authors
- Bridges, J. M.
- Affiliations
- D. Bradley McWilliams School of Biomedical Informatics , University of Texas Health Science Center at Houston , Houston , USA
- Venue
- Diagnosis
- Publisher
- Walter de Gruyter GmbH
- Published
- 2024-05-07
- Volume
- 11
- Issue
- 3
- Pages
- 250-258
- ISSN
- 2194-802X
- Cited by
- 20
- References
- 3
- Language
- en
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Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
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- The paper
- Bridges, J. M. (2024). Computerized diagnostic decision support systems–A comparative performance study of Isabel Pro vs. ChatGPT4. Diagnosis. https://doi.org/10.1515/dx-2024-0033
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.