Evidence map›Paper›PMID 31737514›Full record

ArticleCardiovascular diagnosis and therapy2019

A low-cost machine learning-based cardiovascular/stroke risk assessment system: integration of conventional factors with image phenotypes.

Ankush Jamthikar, Deep Gupta, Narendra N Khanna, Luca Saba, Tadashi Araki, Klaudija Viskovic, Harman S Suri, Ajay Gupta, Sophie Mavrogeni, Monika Turk and 10 more

Open access · diamondAbstract read
In one paragraph

Article in Cardiovascular diagnosis and therapy, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 1 pooled it
8.5field-weighted citation impact, top 2% 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

44 citing papers in PubMed, 1 synthesis or guideline pooled it, 88 citations in OpenAlex.

  1. Pooled it
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  14. Symmetry and asymmetry in atherosclerosis.International journal of occupational medicine and environmental health · 2023
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  17. Predicting stroke and mortality in mitral stenosis with atrial flutter: A machine learning approach.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2023
    Article
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  19. Machine Learning and the Conundrum of Stroke Risk Prediction.Arrhythmia & electrophysiology review · 2023
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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

20 authors at 12 institutions in 9 countries.

Ankush JamthikarDepartment of Electronics and Communication Engineering, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra, India.
Deep GuptaDepartment of Electronics and Communication Engineering, Visvesvaraya National Institute of Technology, Nagpur, Maharashtra, India.
Narendra N KhannaDepartment of Cardiology, Indraprastha Apollo Hospitals, New Delhi, India.
Luca SabaDepartment of Radiology, University of Cagliari, Cagliari, Italy.
Tadashi ArakiDivision of Cardiovascular Medicine, Toho University, Tokyo, Japan.
Klaudija ViskovicDepartment of Radiology and Ultrasound, University Hospital for Infectious Diseases Croatia, Zagreb, Croatia.
Harman S SuriDepartment of Neuroscience, Brown University, Providence, RI, USA.
Ajay GuptaDepartment of Radiology, Weill Cornell Medicine, New York, NY, USA.
Sophie MavrogeniCardiology Clinic, Onassis Cardiac Surgery Center, Athens, Greece.
Monika TurkDepartment of Neurology, University Medical Centre Maribor, Maribor, Slovenia.
John R LairdHeart and Vascular Institute, Adventist Health St. Helena, St. Helena, CA, USA.
Gyan PareekMinimally Invasive Urology Institute, Brown University, Providence, RI, USA.
Martin MinerMen's Health Center, Miriam Hospital Providence, Providence, RI, USA.
Petros P SfikakisRheumatology Unit, National and Kapodistrian University of Athens, Athens, Greece.
Athanasios ProtogerouDepartment of Cardiovascular Prevention & Research Unit Clinic & Laboratory of Pathophysiology, National and Kapodistrian University of Athens, Athens, Greece.
George D KitasR & D Academic Affairs, Dudley Group NHS Foundation Trust, Dudley, UK.
Vijay ViswanathanM.V. Hospital for Diabetes and Professor M. Viswanathan Diabetes Research Centre, Chennai, India.
Andrew NicolaidesVascular Screening and Diagnostic Centre and University of Nicosia Medical School, Nicosia, Cyprus.
Deepak L BhattBrigham and Women's Hospital Heart & Vascular Center, Harvard Medical School, Boston, MA, USA.
Jasjit S SuriStroke Monitoring and Diagnostic Division, AtheroPoint™, Roseville, CA, USA.
Visvesvaraya National Institute of Technology · INIndraprastha Apollo Hospitals · INToho University · JPBrigham and Women's Hospital · USBrown University · USCornell University · USNational and Kapodistrian University of Athens · GROnassis Cardiac Surgery Center · GRUniversity Clinical Centre Maribor · SIUniversity Hospital Centre Zagreb · HRUniversity of Cagliari · ITWeill Cornell Medicine · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMost cardiovascular (CV)/stroke risk calculators using the integration of carotid ultrasound image-based phenotypes (CUSIP) with conventional risk factors (CRF) have shown improved risk stratification compared with either method. However such approaches have not yet leveraged the potential of machine learning (ML). Most intelligent ML strategies use follow-ups for the endpoints but are costly and time-intensive. We introduce an integrated ML system using stenosis as an endpoint for training and determine whether such a system can lead to superior performance compared with the conventional ML system.

methodsThe ML-based algorithm consists of an offline and online system. The offline system extracts 47 features which comprised of 13 CRF and 34 CUSIP. Principal component analysis (PCA) was used to select the most significant features. These offline features were then trained using the event-equivalent gold standard (consisting of percentage stenosis) using a random forest (RF) classifier framework to generate training coefficients. The online system then transforms the PCA-based test features using offline trained coefficients to predict the risk labels on test subjects. The above ML system determines the area under the curve (AUC) using a 10-fold cross-validation paradigm. The above system so-called "AtheroRisk-Integrated" was compared against "AtheroRisk-Conventional", where only 13 CRF were considered in a feature set.

resultsLeft and right common carotid arteries of 202 Japanese patients (Toho University, Japan) were retrospectively examined to obtain 395 ultrasound scans. AtheroRisk-Integrated system [AUC =0.80, P<0.0001, 95% confidence interval (CI): 0.77 to 0.84] showed an improvement of ~18% against AtheroRisk-Conventional ML (AUC =0.68, P<0.0001, 95% CI: 0.64 to 0.72).

conclusionsML-based integrated model with the event-equivalent gold standard as percentage stenosis is powerful and offers low cost and high performance CV/stroke risk assessment.

Indexed as

10-year riskAtherosclerosiscardiovascular disease (CVD)carotid intima-media thickness (cIMT)carotid stenosiscarotid ultrasound (CUS)conventional risk factors (CRF)machine learning (ML)stroke

Identifiers

PMID31737514
PMCPMC6837917
OpenAlexW2980238977

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.