Evidence map›Paper›PMID 20542762›Full record

ArticleIEEE transactions on bio-medical engineering2010

Modeling the role of the coronary vasculature during external field stimulation.

Martin J Bishop, Patrick M Boyle, Gernot Plank, Donald G Welsh, Edward J Vigmond

Abstract read
In one paragraph

Article in IEEE transactions on bio-medical engineering, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

24 citing papers in PubMed.

  1. Article
  2. Article
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  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Images as drivers of progress in cardiac computational modelling.Progress in biophysics and molecular biology · 2014
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Computational approaches to understand cardiac electrophysiology and arrhythmias.American journal of physiology. Heart and circulatory physiology · 2012
    Review
  20. Article
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.

Martin J BishopComputing Laboratory, University of Oxford, Oxford, OX1 3QD, UK. martin.bishop@comlab.ox.ac.uk
Patrick M Boyle
Gernot Plank
Donald G Welsh
Edward J Vigmond

Funding

Multi-scale Modeling of Calcium Mediated Triggered Activity in the HeartR01HL101196 · NHLBI · CALIFORNIA STATE UNIVERSITY NORTHRIDGE · PI SHIFERAW, YOHANNES · 2010 to 2013
$1.2M
Austrian Science Fund FWF F 3210NHLBI NIH HHS R01 HL101196Wellcome Trust 085605
6 · The paper itself

Abstract

The exact mechanisms by which defibrillation shocks excite cardiac tissue far from both the electrodes and heart surfaces require elucidation. Bidomain theory explains this phenomena through the existence of intramural virtual electrodes (VEs), caused by discontinuities in myocardial tissue structure. In this study, we assess the modeling components essential in constructing a finite-element cardiac tissue model including blood vessels from high-resolution magnetic resonance data and investigate the specific role played by coronary vasculature in VE formation, which currently remains largely unknown. We use a novel method for assigning histologically based fiber architecture around intramural structures and include an experimentally derived vessel lumen wall conductance within the model. Shock-tissue interaction in the presence of vessels is assessed through comparison with a simplified model lacking intramural structures. Results indicate that VEs form around blood vessels for shocks > 8 V/cm. The magnitude of induced polarizations is attenuated by realistic representation of fiber negotiation around vessel cavities, as well as the insulating effects of the vessel lumen wall. Furthermore, VEs formed around large subepicardial vessels reduce epicardial polarization levels. In conclusion, we have found that coronary vasculature acts as an important substrate for VE formation, which may help interpretation of optical mapping data.

Indexed as

Models, CardiovascularAnimalsCoronary VesselsDefibrillatorsElectric CountershockElectric StimulationHeartRabbitsSignal Processing, Computer-Assisted

Identifiers

PMID20542762
PMCPMC2976591

What OpenQuestion holds

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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.