Evidence map›Paper›PMID 35438211›Full record

ArticleClinical cardiology2022

A deep neural network using audio files for detection of aortic stenosis.

Ingo Voigt, Marc Boeckmann, Oliver Bruder, Alexander Wolf, Thomas Schmitz, Heinrich Wieneke

Abstract read
In one paragraph

Article in Clinical cardiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
–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

8 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
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  6. Review
  7. 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.

Ingo VoigtDepartment of Cardiology and Angiology, Contilia Heart and Vascular Center, Elisabeth-Krankenhaus Essen, Essen, Germany.ORCID https://orcid.org/0000-0001-6820-3005
Marc BoeckmannDepartment of Cardiology and Angiology, Contilia Heart and Vascular Center, Elisabeth-Krankenhaus Essen, Essen, Germany.ORCID https://orcid.org/0000-0002-3438-0772
Oliver BruderDepartment of Cardiology and Angiology, Contilia Heart and Vascular Center, Elisabeth-Krankenhaus Essen, Essen, Germany.ORCID https://orcid.org/0000-0003-2531-5503
Alexander WolfDepartment of Cardiology and Angiology, Contilia Heart and Vascular Center, Elisabeth-Krankenhaus Essen, Essen, Germany.ORCID https://orcid.org/0000-0003-1541-6351
Thomas SchmitzDepartment of Cardiology and Angiology, Contilia Heart and Vascular Center, Elisabeth-Krankenhaus Essen, Essen, Germany.ORCID https://orcid.org/0000-0001-9605-1117
Heinrich WienekeDepartment of Cardiology and Angiology, Contilia Heart and Vascular Center, Elisabeth-Krankenhaus Essen, Essen, Germany.ORCID https://orcid.org/0000-0002-6709-0982

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough aortic stenosis (AS) is the most common valvular heart disease in the western world, many affected patients remain undiagnosed. Auscultation is a readily available screening tool for AS. However, it requires a high level of professional expertise. HYPOTHESIS: An AI algorithm can detect AS using audio files with the same accuracy as experienced cardiologists.

methodsA deep neural network (DNN) was trained by preprocessed audio files of 100 patients with AS and 100 controls. The DNN's performance was evaluated with a test data set of 40 patients. The primary outcome measures were sensitivity, specificity, and F1-score. Results of the DNN were compared with the performance of cardiologists, residents, and medical students.

resultsEighteen percent of patients without AS and 22% of patients with AS showed an additional moderate or severe mitral regurgitation. The DNN showed a sensitivity of 0.90 (0.81-0.99), a specificity of 1, and an F1-score of 0.95 (0.89-1.0) for the detection of AS. In comparison, we calculated an F1-score of 0.94 (0.86-1.0) for cardiologists, 0.88 (0.78-0.98) for residents, and 0.88 (0.78-0.98) for students.

conclusionsThe present study shows that deep learning-guided auscultation predicts significant AS with similar accuracy as cardiologists. The results of this pilot study suggest that AI-assisted auscultation may help general practitioners without special cardiology training in daily practice.

Indexed as

Aortic Valve StenosisCardiologistsCardiologyHumansNeural Networks, ComputerPilot Projectsaortic stenosisartificial intelligenceauscultationdeep neural networkmachine learningvalvular heart disease

Identifiers

PMID35438211
PMCPMC9175247

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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.