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Updated: Mar 7, 2026
In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography
Published on: February 16, 2016
Evaluation of cardiac microvasculature in patients with diffuse myocardial fibrosis
Octavian Istrătoaie1, Ionica Pirici, Anca Maria OfiŢeru
1Department of Anatomy, University of Medicine and Pharmacy of Craiova, Romania; danapirici@yahoo.com.
Insights
Myocardial fibrosis, a key factor in heart failure, is directly caused by local hypoxia stimulating heart fibroblasts. Reduced microvascular density in patients with hypertension, AF, and heart failure confirms this link.
Area of Science:
- Cardiology
- Pathology
- Physiology
Background:
- Myocardial fibrosis is a common lesion in chronic heart diseases.
- Progressive fibrosis can lead to heart failure, a severe condition.
- The link between fibrosis severity and microcirculation is a critical prognostic factor.
Purpose of the Study:
- To investigate the relationship between myocardial microcirculation and fibrosis.
- To evaluate microvascular density in patients with specific cardiovascular conditions.
Main Methods:
- Assessed myocardial microvascular density in patients.
- Included patients with hypertension, atrial fibrillation (AF), coronary heart disease, and heart failure.
Main Results:
- A significant decrease in myocardial microvascular density was observed.
- This reduction was noted in patients with hypertension, AF, coronary heart disease, and heart failure.
Conclusions:
- Myocardial fibrosis results from local hypoxia stimulating myocardial fibroblasts.
- Reduced microvascular density is a direct indicator of fibrosis development in these conditions.
Abstract:
Myocardial fibrosis is one of the most common histopathological lesions found in chronic heart diseases. Progressive development of myocardial fibrosis will cause heart failure, an extremely debilitating and life threatening condition. The correlation between the severity of fibrosis and myocardial microcirculation is an important prognostic factor in this disease entity. In our study, myocardial microvascular density evaluation of the patients with high blood pressure (hypertension), atrial fibrillation (AF), coronary heart disease, and heart failure showed a significant decrease of the values of this parameter, which means that myocardial fibrosis is the direct result of stimulation of myocardial fibroblasts induced by local hypoxia.
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