Evidence map›Paper›PMID 39535870›Full record

ArticleThe British journal of radiology2025

Assessing the performance of ChatGPT and Bard/Gemini against radiologists for Prostate Imaging-Reporting and Data System classification based on prostate multiparametric MRI text reports.

Kang-Lung Lee, Dimitri A Kessler, Iztok Caglic, Yi-Hsin Kuo, Nadeem Shaida, Tristan Barrett

Abstract read
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Article in The British journal of radiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

17 citing papers in PubMed.

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  8. [Research progress of large language models in tumor diagnosis: applications in textual reports and medical imaging].Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2026
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  15. AI in Prostate MRI: A Task-Based Review.Journal of the Korean Society of Radiology · 2025
    Review
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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

6 authors.

Kang-Lung LeeDepartment of Radiology, University of Cambridge, Cambridge CB2 0QQ, United Kingdom.ORCID 0000-0002-1648-7154
Dimitri A KesslerDepartment of Radiology, University of Cambridge, Cambridge CB2 0QQ, United Kingdom.
Iztok CaglicDepartment of Radiology, Cambridge University Hospitals NHS Foundation Trust Addenbrooke's Hospital, Cambridge CB2 0QQ, United Kingdom.
Yi-Hsin KuoDepartment of Radiology, Taipei Veterans General Hospital, Taipei 112, Taiwan.
Nadeem ShaidaDepartment of Radiology, Cambridge University Hospitals NHS Foundation Trust Addenbrooke's Hospital, Cambridge CB2 0QQ, United Kingdom.
Tristan BarrettDepartment of Radiology, University of Cambridge, Cambridge CB2 0QQ, United Kingdom.ORCID 0000-0002-1180-1474

Funding

NIHR Cambridge Biomedical Research Centre NIHR203312
6 · The paper itself

Abstract

objectivesLarge language models (LLMs) have shown potential for clinical applications. This study assesses their ability to assign Prostate Imaging-Reporting and Data System (PI-RADS) categories based on clinical text reports.

methodsOne hundred consecutive biopsy-naïve patients' multiparametric prostate MRI reports were independently classified by 2 uroradiologists, ChatGPT-3.5 (GPT-3.5), ChatGPT-4o mini (GPT-4), Bard, and Gemini. Original report classifications were considered definitive.

resultsOut of 100 MRIs, 52 were originally reported as PI-RADS 1-2, 9 PI-RADS 3, 19 PI-RADS 4, and 20 PI-RADS 5. Radiologists demonstrated 95% and 90% accuracy, while GPT-3.5 and Bard both achieved 67%. Accuracy of the updated versions of LLMs increased to 83% (GTP-4) and 79% (Gemini), respectively. In low suspicion studies (PI-RADS 1-2), Bard and Gemini (F1: 0.94, 0.98, respectively) outperformed GPT-3.5 and GTP-4 (F1:0.77, 0.94, respectively), whereas for high probability MRIs (PI-RADS 4-5), GPT-3.5 and GTP-4 (F1: 0.95, 0.98, respectively) outperformed Bard and Gemini (F1: 0.71, 0.87, respectively). Bard assigned a non-existent PI-RADS 6 "hallucination" for 2 patients. Inter-reader agreements (Κ) between the original reports and the senior radiologist, junior radiologist, GPT-3.5, GTP-4, BARD, and Gemini were 0.93, 0.84, 0.65, 0.86, 0.57, and 0.81, respectively.

conclusionsRadiologists demonstrated high accuracy in PI-RADS classification based on text reports, while GPT-3.5 and Bard exhibited poor performance. GTP-4 and Gemini demonstrated improved performance compared to their predecessors. ADVANCES IN KNOWLEDGE: This study highlights the limitations of LLMs in accurately classifying PI-RADS categories from clinical text reports. While the performance of LLMs has improved with newer versions, caution is warranted before integrating such technologies into clinical practice.

Indexed as

Magnetic Resonance ImagingMultiparametric Magnetic Resonance ImagingProstatic NeoplasmsRadiology Information SystemsAgedGenerative Artificial IntelligenceHumansMaleMiddle AgedProstateRadiologistsBardChatGPTGeminilarge language modelPI-RADSprostate MRI

Identifiers

PMID39535870
PMCPMC11840166

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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.