Evidence map›Paper›PMID 23733926›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2013

Revised microcalcification hypothesis for fibrous cap rupture in human coronary arteries.

Adreanne Kelly-Arnold, Natalia Maldonado, Damien Laudier, Elena Aikawa, Luis Cardoso, Sheldon Weinbaum

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 185 papers.

0numbers the graph read from it
0cells of the map it votes in
185citing 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

185 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Article
  4. Review
  5. Review
  6. Review
  7. Review
  8. Review
  9. Review
  10. Biomechanics of Plaque Rupture and Cardiovascular Calcification.Advances in experimental medicine and biology · 2026
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Observational
  17. Considerations on the Development of Therapeutics in Vascular Calcification.Journal of cardiovascular development and disease · 2025
    Review
  18. Review
  19. Review
  20. Article

125 more citing papers are in PubMed but not listed here.

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.

Adreanne Kelly-ArnoldDepartment of Biomedical Engineering, City College of New York, New York, NY 10031, USA.
Natalia Maldonado
Damien Laudier
Elena Aikawa
Luis Cardoso
Sheldon Weinbaum

Funding

Aortic valve microcalcificationR01HL114805 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI AIKAWA, ELENA · 2012 to 2016
$2.1M
Age Related Bone Loss Assessed by Ultrasound Tomography: Bone Quality Beyond BMDSC2AG034198 · NIA · CITY COLLEGE OF NEW YORK · PI CARDOSO, LUIS · 2009 to 2011
$434k
NHLBI NIH HHS HL101151NHLBI NIH HHS R01 HL114805NHLBI NIH HHS R01 HL114805-01NIA NIH HHS AG034198NIA NIH HHS SC2 AG034198
6 · The paper itself

Abstract

Using 2.1-µm high-resolution microcomputed tomography, we have examined the spatial distribution, clustering, and shape of nearly 35,000 microcalcifications (µCalcs) ≥ 5 µm in the fibrous caps of 22 nonruptured human atherosclerotic plaques. The vast majority of these µCalcs were <15 µm and invisible at the previously used 6.7-µm resolution. A greatly simplified 3D finite element analysis has made it possible to quickly analyze which of these thousands of minute inclusions are potentially dangerous. We show that the enhancement of the local tissue stress caused by particle clustering increases rapidly for gap between particle pairs (h)/particle diameter (D) < 0.4 if particles are oriented along the tensile axis of the cap. Of the thousands of µCalcs observed, there were 193 particle pairs with h/D ≤ 2 (tissue stress factor > 2), but only 3 of these pairs had h/D ≤ 0.4, where the local tissue stress could increase a factor > 5. Using nondecalcified histology, we also show that nearly all caps have µCalcs between 0.5 and 5 µm and that the µCalcs ≥ 5 µm observed in high-resolution microcomputed tomography are agglomerations of smaller calcified matrix vesicles. µCalcs < 5 µm are predicted to be not harmful, because the tiny voids associated with these very small particles will not explosively grow under tensile forces because of their large surface energy. These observations strongly support the hypothesis that nearly all fibrous caps have µCalcs, but only a small subset has the potential for rupture.

Indexed as

Models, CardiovascularCoronary Artery DiseaseHumansPlaque, AtheroscleroticRadiographyRupture, SpontaneousStress, MechanicalVascular Calcificationclustered microcalcificationsfinite element analysis of fibrous capsmicrocomputed tomography imaging of microcalcificationsvulnerable plaque

Identifiers

PMID23733926
PMCPMC3696743

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.