Evidence map›Paper›PMID 34786615›Full record

ArticleEuropean radiology2022

Deep learning-assisted prostate cancer detection on bi-parametric MRI: minimum training data size requirements and effect of prior knowledge.

Matin Hosseinzadeh, Anindo Saha, Patrick Brand, Ivan Roan Slootweg, Maarten de Rooij, Henkjan Huisman

Open access · hybridAbstract read
In one paragraph

Article in European radiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
11.9field-weighted citation impact, top 1% 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

64 citing papers in PubMed, 117 citations in OpenAlex.

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4 more citing papers are in PubMed but not listed here.

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 at 1 institution in 1 country.

Matin HosseinzadehDiagnostic Image Analysis Group, Department of Medical Imaging, Radboudumc, Nijmegen, The Netherlands.
Anindo SahaDiagnostic Image Analysis Group, Department of Medical Imaging, Radboudumc, Nijmegen, The Netherlands.
Patrick BrandDiagnostic Image Analysis Group, Department of Medical Imaging, Radboudumc, Nijmegen, The Netherlands.
Ivan Roan SlootwegDiagnostic Image Analysis Group, Department of Medical Imaging, Radboudumc, Nijmegen, The Netherlands.
Maarten de RooijDiagnostic Image Analysis Group, Department of Medical Imaging, Radboudumc, Nijmegen, The Netherlands.
Henkjan HuismanDiagnostic Image Analysis Group, Department of Medical Imaging, Radboudumc, Nijmegen, The Netherlands. henkjan.huisman@radboudumc.nl.ORCID http://orcid.org/0000-0001-6753-3221
Radboud University Nijmegen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo assess Prostate Imaging Reporting and Data System (PI-RADS)-trained deep learning (DL) algorithm performance and to investigate the effect of data size and prior knowledge on the detection of clinically significant prostate cancer (csPCa) in biopsy-naïve men with a suspicion of PCa.

methodsMulti-institution data included 2734 consecutive biopsy-naïve men with elevated PSA levels (≥ 3 ng/mL) that underwent multi-parametric MRI (mpMRI). mpMRI exams were prospectively reported using PI-RADS v2 by expert radiologists. A DL framework was designed and trained on center 1 data (n = 1952) to predict PI-RADS ≥ 4 (n = 1092) lesions from bi-parametric MRI (bpMRI). Experiments included varying the number of cases and the use of automatic zonal segmentation as a DL prior. Independent center 2 cases (n = 296) that included pathology outcome (systematic and MRI targeted biopsy) were used to compute performance for radiologists and DL. The performance of detecting PI-RADS 4-5 and Gleason > 6 lesions was assessed on 782 unseen cases (486 center 1, 296 center 2) using free-response ROC (FROC) and ROC analysis.

resultsThe DL sensitivity for detecting PI-RADS ≥ 4 lesions was 87% (193/223, 95% CI: 82-91) at an average of 1 false positive (FP) per patient, and an AUC of 0.88 (95% CI: 0.84-0.91). The DL sensitivity for the detection of Gleason > 6 lesions was 85% (79/93, 95% CI: 77-83) @ 1 FP compared to 91% (85/93, 95% CI: 84-96) @ 0.3 FP for a consensus panel of expert radiologists. Data size and prior zonal knowledge significantly affected performance (4%, [Formula: see text]).

conclusionPI-RADS-trained DL can accurately detect and localize Gleason > 6 lesions. DL could reach expert performance using substantially more than 2000 training cases, and DL zonal segmentation. KEY POINTS: • AI for prostate MRI analysis depends strongly on data size and prior zonal knowledge. • AI needs substantially more than 2000 training cases to achieve expert performance.

Indexed as

Deep LearningMultiparametric Magnetic Resonance ImagingProstatic NeoplasmsHumansImage-Guided BiopsyMagnetic Resonance ImagingMaleProstateRetrospective StudiesArtificial intelligenceDeep learningProstate cancerRadiology

Identifiers

PMID34786615
PMCPMC8921042
OpenAlexW3212558611

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.