Evaluation of Left Ventricular Longitudinal, Radial, and Circumferential Strains in Subjects with Normal Variations of Coronary Dominance: A Preliminary Comparative Study

Aghajankhah, Mohammad-Reza; Hosseinpour, Mojtaba; Moladoust, Hassan; Rad, Mohammad Assadian; Nasiri, Ebrahim

doi:10.5152/anatoljcardiol.2022.1075

Cited by 3 publications

(3 citation statements)

References 34 publications

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“… 35 This is possibly exacerbated by differences in myocardial strain patterns, with higher regional and global strain patterns in those with right and co‐coronary dominance compared with left, particularly on the longitudinal and circumferential planes. 36 Ventricular coronary flow within the RCA is also sensitive to elevated right ventricular pressures, where elevated pulmonary artery pressures may lead to compromise of systolic perfusion and reduced diastolic perfusion. 37 …”

Section: Difference In Coronary Flow Of Left and Right Dominant Coron...mentioning

confidence: 99%

Clinical Significance of Coronary Arterial Dominance: A Review of the Literature

Wu,

Kheiwa,

Swamy

et al. 2024

JAHA

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Coronary dominance describes the anatomic variation of coronary arterial supply, notably as it relates to perfusion of the inferior cardiac territories. Differences in the development and outcome in select disease states between coronary dominance patterns are increasingly recognized. In particular, observational studies have identified higher prevalence of poor outcomes in left coronary dominance in the setting of ischemic, conduction, and valvular disease. In this qualitative literature review, we summarize anatomic, physiologic, and clinical implications of differences in coronary dominance to highlight current understanding and gaps in the literature that should warrant further studies.

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Section: Difference In Coronary Flow Of Left and Right Dominant Coron...mentioning

confidence: 99%

Clinical Significance of Coronary Arterial Dominance: A Review of the Literature

Wu,

Kheiwa,

Swamy

et al. 2024

JAHA

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“…Tissue Doppler signal has angle dependency and may be influenced by global heart motion, such as translation, torsion, and rotation (7) . Two D-STE is an emerging technology that measures strain and strain rate by tracking speckles in 2D grayscale echocardiographic images (8) . It can measure myocardial motion in any direction irrespective of the direction of the beam and provides strain in all dimensions (longitudinal, radial, and circumferential).…”

Section: Introductionmentioning

confidence: 99%

Assessment of Left Ventricular Functions by Two-Dimensional Speckle Tracking Echocardiography in Patients with Coronary Slow-Flow Phenomenon.

Abd-Elhady

Attia

Bashandy³

2023

SJMS

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Background: Coronary slow flow phenomenon (CSFP) is a medical challenge, especially regarding its diagnosis. The use of speckle tracking seems to provide a clue for diagnosis. However, its role is not well addressed. Aim of the work: To assess the value of the left ventricle's global longitudinal strain by 2D speckle tracking to detect subclinical left ventricular systolic dysfunction in patients with the slow coronary flow. Patients and methods: This study was performed between May and September 2020 at the cardiology department, Al-Azhar University Hospital (New Damietta). Thirty patients are known to have slow coronary flow based on a previous coronary angiographic examination, and 30 healthy participants with the same demographic match (age and sex) as a control group were included. Patients were classified into two groups: Group (A): Included 30 patients with a coronary slow flow. Group (B): Included 30 normal healthy adult persons served as a control group. All were assessed clinically and by radiological investigations. In addition, speckle tracking echocardiography was done for all patients. Results: In Doppler flow measures, E wave and E/A ratio showed significantly lower values in CSFP when compared with the control group (p= 0.02, 0.003 respectively). According to tissue velocity imaging (TVI), there is a similarity between both groups without any significant difference. Speckle tracking measurements demonstrate significantly lower value in patients with CSFP than the control group (p=0.003). Conclusion: In patients with CSF, LV systolic function detected during both conventional and tissue Doppler echocardiographic examinations was not affected, but 2D longitudinal strain demonstrated that LV systolic function was impaired. CSFP could impair LV diastolic function.

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“…Most of these studies have only considered a small section of a coronary artery with no branching and have not investigated in depth the combination of ventricular torsion and expansion on the coronary hemodynamics. In reality, cardiac motion is likely to be spatially inhomogeneous and therefore the embedded arteries are subject to deformations in the radial, circumferential and longitudinal directions [10]. Moreover, the role of secondary flow patterns in moving coronary vessels has not yet been investigated.…”

Section: Introductionmentioning

confidence: 99%

Computational Analysis of the Effect of Cardiac Motion on Left Main Coronary Artery Hemodynamics

Delestri¹,

Kok²,

Abed³

et al. 2022

Computing in Cardiology Conference (CinC)

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Cardiac muscle health is dependent on the ample supply of oxygenated blood to ensure optimal cardiac function. The continuous supply of oxygenated blood occurs through coronary arteries embedded within the muscle. Cardiac motions involve contracting and expanding giving rise to the biomechanical behavior of the arteries. This work studies the impact of cardiac motion on the coronary flow using a two-way fluid-structure interaction. Blood flow was modelled within an idealized 3D coronary arterial structure using incompressible laminar Navier-Stokes equations. The vessel walls of left main artery were represented using an isotropic five-parameter Mooney-Rivlin hyperelastic material which deformed dynamically with prescribed displacement boundary conditions to simulate ventricular torsional and expansion motions. Our results showed higher blood velocities at the bifurcation region in the moving artery than in the non-moving case, particularly during systolic torsional motion. During systole, the wall shear stress near the bifurcation was found to be lower in the non-moving case relative to the moving one. In the non-moving model, a helical-shaped pattern of secondary flow was observed as the blood flowed through the curved vessel, however this pattern diminished in the moving model, where the arterial curvature dynamically changed throughout cardiac cycle.

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Evaluation of Left Ventricular Longitudinal, Radial, and Circumferential Strains in Subjects with Normal Variations of Coronary Dominance: A Preliminary Comparative Study

Cited by 3 publications

References 34 publications

Clinical Significance of Coronary Arterial Dominance: A Review of the Literature

Clinical Significance of Coronary Arterial Dominance: A Review of the Literature

Assessment of Left Ventricular Functions by Two-Dimensional Speckle Tracking Echocardiography in Patients with Coronary Slow-Flow Phenomenon.

Computational Analysis of the Effect of Cardiac Motion on Left Main Coronary Artery Hemodynamics

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