Evidence map›Paper›PMID 29479659›Full record

ArticleMedical & biological engineering & computing2018

In vivo estimation of passive biomechanical properties of human myocardium.

Arnab Palit, Sunil K Bhudia, Theodoros N Arvanitis, Glen A Turley, Mark A Williams

Abstract read
In one paragraph

Article in Medical & biological engineering & computing, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

  1. Article
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  5. Passive biaxial mechanical properties of sheep myocardium.Frontiers in bioengineering and biotechnology · 2025
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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

5 authors.

Arnab PalitWMG, The University of Warwick, Coventry, CV4 7AL, UK. arnab.palit@warwick.ac.uk.
Sunil K BhudiaUniversity Hospitals Coventry and Warwickshire, Coventry, UK.
Theodoros N ArvanitisInstitute of Digital Healthcare, WMG, The University of Warwick, Coventry, UK.
Glen A TurleyWMG, The University of Warwick, Coventry, CV4 7AL, UK.
Mark A WilliamsWMG, The University of Warwick, Coventry, CV4 7AL, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Identification of in vivo passive biomechanical properties of healthy human myocardium from regular clinical data is essential for subject-specific modelling of left ventricle (LV). In this work, myocardium was defined by Holzapfel-Ogden constitutive law. Therefore, the objectives of the study were (a) to estimate the ranges of the constitutive parameters for healthy human myocardium using non-invasive routine clinical data, and (b) to investigate the effect of geometry, LV end-diastolic pressure (EDP) and fibre orientations on estimated values. In order to avoid invasive measurements and additional scans, LV cavity volume, measured from routine MRI, and empirical pressure-normalised-volume relation (Klotz-curve) were used as clinical data. Finite element modelling, response surface method and genetic algorithm were used to inversely estimate the constitutive parameters. Due to the ill-posed nature of the inverse optimisation problem, the myocardial properties was extracted by identifying the ranges of the parameters, instead of finding unique values. Additional sensitivity studies were carried out to identify the effect of LV EDP, fibre orientation and geometry on estimated parameters. Although uniqueness of the solution cannot be achieved, the normal ranges of the parameters produced similar mechanical responses within the physiological ranges. These information could be used in future computational studies for designing heart failure treatments. Graphical abstract.

Indexed as

AnimalsBiomechanical PhenomenaBlood PressureDiastoleFinite Element AnalysisHeart VentriclesHumansMagnetic Resonance Imaging, CineMyocardiumStress, MechanicalSus scrofaFibre structureFinite elementNormal human subjectsParameter estimationVentricular diastolic mechanicsVentricular geometry

Identifiers

PMID29479659
PMCPMC6096751

What OpenQuestion holds

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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.