Evidence map›Paper›PMID 40965401›Full record

ArticleJACC. Advances2025

International Validation of Echocardiographic Artificial Intelligence Amyloid Detection Algorithm.

Grant Duffy, Evangelos K Oikonomou, Nicholas Easton, Hiroki Usuku, Jigesh Patel, Yoshinori Katsumata, Daisuke Yamasawa, Lily Stern, Shinichi Goto, Kenichi Tsujita and 4 more

Abstract read
In one paragraph

Article in JACC. Advances, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Review
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  5. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors.

Grant DuffySmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Evangelos K OikonomouSection of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA; Cardiovascular Data Science (CarDS) Lab, Yale School of Medicine, New Haven, Connecticut, USA.
Nicholas EastonDepartment of Medicine, Northwestern Medicine, Chicago, Illinois, USA.
Hiroki UsukuDepartment of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Chuo-ku, Kumamoto, Japan.
Jigesh PatelSmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Yoshinori KatsumataDepartment of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan.
Daisuke YamasawaDepartment of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan.
Lily SternSmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA.
Shinichi GotoDepartment of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Chuo-ku, Kumamoto, Japan; Department of Cardiology, Keio University School of Medicine, Shinjuku, Tokyo, Japan; Department of Medicine, Tokai University School of Medicine, Isehara, Kanagawa, Japan; One Brave Idea, Division of Cardiovascular Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA.
Kenichi TsujitaDepartment of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Chuo-ku, Kumamoto, Japan.
Paul ChengDivision of Cardiology, Department of Medicine, Stanford University, Palo Alto, California, USA.
Rohan KheraSection of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA; Cardiovascular Data Science (CarDS) Lab, Yale School of Medicine, New Haven, Connecticut, USA.
Faraz S AhmadDepartment of Medicine, Northwestern Medicine, Chicago, Illinois, USA.
David OuyangSmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA. Electronic address: david.ouyang@cshs.org.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDiagnosis of cardiac amyloidosis (CA) is often missed or delayed due to confusion with other causes of increased left ventricular wall thickness. Conventional transthoracic echocardiographic measurements like global longitudinal strain have shown promise in distinguishing CA, but with limited specificity.

objectivesWe conducted a multisite retrospective case-control study to investigate the performance of a computer vision algorithm for CA identification across multiple international sites.

methodsEchoNet-left ventricular hypertrophy (LVH) is a computer vision deep learning algorithm for the detection of CA based on parasternal long axis and apical-4-chamber view videos. We evaluated EchoNet-LVH's ability to distinguish between the echocardiogram studies of 574 CA patients and 979 controls. We reported discrimination performance with an area under the receiver operating characteristic curve and associated sensitivity, specificity, and positive predictive value at the prespecified threshold.

resultsEchoNet-LVH had an area under the receiver operating characteristic curve of 0.896 (95% CI: 0.875-0.916). At the prespecified model threshold optimizing for specificity, EchoNet-LVH had a sensitivity of 0.644 (95% CI: 0.601-0.685), specificity of 0.988 (95% CI: 0.978-0.994), positive predictive value of 0.968 (95% CI: 0.944-0.984), and negative predictive value of 0.828 (95% CI: 0.804-0.850). There was no evidence of heterogeneity in performance by site, race, sex, age, body mass index, CA subtype, or ultrasound manufacturer.

conclusionsEchoNet-LVH can assist with earlier and accurate diagnosis of CA. EchoNet-LVH achieved development goals to be highly specific to maximize positive predictive value of downstream confirmatory testing since CA is a rare disease.

Indexed as

artificial intelligencecardiac amyloidosiscomputer visionechocardiography

Identifiers

PMID40965401
PMCPMC12717555

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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.