ArticleHistochemistry and cell biology2022
Fourier analysis of collagen bundle orientation in myocardial infarction scars.
Article in Histochemistry and cell biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
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Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.
- Meta-Analysis of Extracellular Matrix Dynamics after Myocardial Infarction Using RNA-Sequencing Transcriptomic Database.International journal of molecular sciences · 2022Pooled it
- Mechanical Modeling of Cardiac Fibrosis With Explicit Spatial Representation of Cellular Structure and Collagen Alignment.Journal of biomechanical engineering · 2026Article
- New frontiers in porcine atrioventricular node decellularization: preserving extracellular matrix architecture for biological scaffolds.Frontiers in bioengineering and biotechnology · 2026Article
- Evaluating the effects of glutaraldehyde concentration and incubation time on the structural integrity of the human pericardium.Frontiers in bioengineering and biotechnology · 2026Article
- Left Ventricular Remodeling After Myocardial Infarction-Pathophysiology, Diagnostic Approach and Management During Cardiac Rehabilitation.International journal of molecular sciences · 2025Review
- Comparison of conventional and radiomics-based analysis of myocardial infarction using multimodal non-linear optical microscopy.Scientific reports · 2025Article
- Novel Fibrillar and Non-Fibrillar Collagens Involved in Fibrotic Scar Formation after Myocardial Infarction.International journal of molecular sciences · 2024Article
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Authors and funding
10 authors at 5 institutions in 3 countries.
Funding
Abstract
Collagen bundle orientation (CBO) in myocardial infarct scars plays a major role in scar mechanics and complications after infarction. We aim to compare four histopathological methods for CBO measurement in myocardial scarring. Myocardial infarction was induced in 21 pigs by balloon coronary occlusion. Scar samples were obtained at 4 weeks, stained with Masson's trichrome, Picrosirius red, and Hematoxylin-Eosin (H&E), and photographed using light, polarized light microscopy, and confocal microscopy, respectively. Masson's trichrome images were also optimized to remove non-collagenous structures. Two observers measured CBO by means of a semi-automated, Fourier analysis protocol. Interrater reliability and comparability between techniques were studied by the intraclass correlation coefficient (ICC) and Bland-Altman (B&A) plots and limits of agreement. Fourier analysis showed an almost perfect interrater reliability for each technique (ICC ≥ 0.95, p < 0.001 in all cases). CBO showed more randomly oriented values in Masson's trichrome and worse comparability with other techniques (ICC vs. Picrosirius red: 0.79 [0.47-0.91], p = 0.001; vs. H&E-confocal: 0.70 [0.26-0.88], p = 0.005). However, optimized Masson's trichrome showed almost perfect agreement with Picrosirius red (ICC 0.84 [0.6-0.94], p < 0.001) and H&E-confocal (ICC 0.81 [0.54-0.92], p < 0.001), as well as these latter techniques between each other (ICC 0.84 [0.60-0.93], p < 0.001). In summary, a semi-automated, Fourier-based method can provide highly reproducible CBO measurements in four different histopathological techniques. Masson's trichrome tends to provide more randomly oriented CBO index values, probably due to non-specific visualization of non-collagenous structures. However, optimization of Masson's trichrome microphotographs to remove non-collagenous components provides an almost perfect comparability between this technique, Picrosirius red and H&E-confocal.
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