scholarly journals Angiographic profile of coronary arteries in Keralite population

2014 ◽  
Vol 03 (03) ◽  
pp. 143-149
Author(s):  
Apsara M P.
Keyword(s):  
Coronary Artery ◽  
Coronary Arteries ◽  
Right Coronary Artery ◽  
Research Work ◽  
Myocardial Revascularization ◽  
Chi Square ◽  
Circumflex Artery ◽  
Chi Square Test ◽  
The Right ◽  
Coronary Angiograms

Abstract Background and aims: The incidence of Coronary Artery Disease (CAD) has reached alanning proportions in India. The pathological hall mark of CAD is myocardial ischemia resulting from the atherosclerotic narrowing of coronary arteries. In this era of advanced interventions and cardiac surgery, a thorough knowledge of normal and variant anatomy of coronary arteries is of prime significance and of great use both to the clinicians and anatomists. Materials and methods: One hundred coronary angiograms of patients free of disease were studied in detail in different profiles. The data obtained was quantified according to their frequencies. The relation between the length of left main coronary artery and coronary artery dominance was statistically analyzed using the 'Chi Square test for Trend'. Results: This study highlighted some interesting findings such as the origin of Sino- atrial nodal artery from the second segment of right coronary artery in 3% of cases, double right marginal artery in 4% cases. Other variations such as Mouchet's posterior recurrent interventricular artery, origin of circumflex artery from the right coronary artery and abnormal communication between the terminal parts of right coronary artery and circumflex artery were each noticed in 1 % of cases. Conclusions: Coronary arteries and their branches are prone to variations in their course and morphology. Prior knowledge about this is important for the interpretation of coronary angiograms and surgical myocardial revascularization. The present work on normal and variant pattern of coronary arteries will help in gathering momentum to the already advancing research work in this field.

scholarly journals Coronary arteries morphometry and their vascular territories

2013 ◽  
Vol 19 (3) ◽  
pp. 130-135
Author(s):  
V. Ispas ◽  
P. Bordei ◽  
D. M. Iliescu ◽  
R. Baz
Keyword(s):  
Coronary Artery ◽  
Right Ventricle ◽  
Coronary Arteries ◽  
Right Coronary Artery ◽  
Left Coronary Artery ◽  
Ct Scanner ◽  
Circumflex Artery ◽  
Marginal Artery ◽  
The Right ◽  
Coronary Dominance

Abstract Our study was performed on a total of 24 angioCT’s by each coronary artery executed on a GE LightSpeed VCT64 Slice CT Scanner. To assess the type of vascularization (coronary dominance) we used also dissection on fresh and formalin preserved hearts, injection of contrast substance followed by radiography and plastic mass injection followed by corrosion. Left coronary artery from origin I found a diameter of between 4.1 to 5.8 mm, the length of the left main coronary artery until its branching (bi or trifurcation) ranging from 3 to 11.8 mm. The diameter of the anterior interventricular artery, was between 1.8 to 3.4 mm, and when the anterior interventricular artery branched off a left marginal artery, it was less voluminous than the case when the marginal artery origin by trifurcation of coronary artery, with 1.8-2.5 mm. Anterior interventricular artery detach left anterior ventricular branches with a diameter of 1.2-2.2 mm. Circumflex artery present a diameter of 2.1 to 4.2 mm at the left aspect of the heart circumflex artery has a diameter of 2.1 to 3.4 mm. On the posterior surface of left ventricle from circumflex artery branches come off with 1.2 to 2.4 mm in diameter. Left marginal artery, when originate from the left coronary artery had a diameter of 2.1 to 2.8 mm. The right coronary artery presents at origin a diameter of 3.1 to 5.4 mm, from the coronary right for the anterior aspect of the right ventricle unhooking the branches with a diameter of 2.2 to 4.2 mm. To the posterior of the right ventricle right coronary artery gave branches with a diameter of 1.6 to 2.6 mm. Right marginal artery had a diameter of 1.6-2.2 mm, and in one case (4.17% from cases) had a diameter of 3.4 mm (when the right coronary origin was 5.4 mm ). From right the coronary atrial branches detaches with a caliber of 0.6-2 mm. Regarding the coronary dominance, we found on a number of 88 hearts that in 29.54% of cases there is predominance of right coronary artery in 25% of cases there is a predominance of the left coronary artery, and in 45.46% of cases there is a balance between the territories of the vascularity of the two coronary arteries.

scholarly journals Anomalous Origin of Coronary Arteries

2020 ◽  
Author(s):  
Xhevdet Krasniqi ◽  
Hajdin Çitaku
Keyword(s):  
Coronary Artery ◽  
Coronary Arteries ◽  
Interventional Cardiology ◽  
Anomalous Origin ◽  
Coronary Artery Anomalies ◽  
Circumflex Artery ◽  
Artery Disease ◽  
Recent Classification ◽  
The Right ◽  
And Function

Coronary arteries supply the heart muscle with blood maintaining myocardial hemostasis and function. Coronary artery anomalies may persist after birth affecting cardiovascular system through haemodynamic impairment caused from shunting, ischaemia, especially in young children or adolescents and young adults. In patients undergoing coronary angiography the incidence of anomalous origination of the left coronary artery from right sinus is 0.15% and the right coronary artery from the left sinus is 0.92%. A recent classification of the coronary anomalies is based on anatomical considerations, recognizing three categories: anomalies of the origin and course, anomalies of the intrinsic coronary artery anatomy, and anomalies of the termination. In the setting of anomalous coronary artery from the opposite sinus, the proximal anomalous CA may run anterior to the pulmonary trunk (prepulmonic), posterior to the aorta (retroaortic), septal (subpulmonic), or between the pulmonary artery and the aorta itself (interarterial). Among them, only those with an interarterial aorta-pulmonary course are regarded as hidden conditions at risk of ischaemia and even sudden death. We presented two cases with anomalous origin of coronary arteries from opposite sinus, and two other cases with anomalous origin of left circumflex artery. The atherosclerotic coronary artery disease leads to the need of coronarography which can find out the presence of coronary artery anomalies. Anomalous origin of coronary artery that is present with atherosclerotic changes continues to exist as a challenge during treatment in interventional cardiology.

Vascular aneurysm producing divided right atrium in a patient with pulmonary atresia and intact ventricular septum

2000 ◽  
Vol 10 (3) ◽  
pp. 281-285 ◽  
Author(s):  
John C. Wood ◽  
Miguel Reyes-Mugica ◽  
Gary Kopf
Keyword(s):  
Coronary Artery ◽  
Coronary Arteries ◽  
Right Coronary Artery ◽  
Right Atrium ◽  
Pulmonary Atresia ◽  
Pulmonary Trunk ◽  
Ventricular Septum ◽  
Intact Ventricular Septum ◽  
Atrioventricular Groove ◽  
The Right

AbstractWe describe a patient with pulmonary atresia and intact ventricular septum in whom the right atrium was divided by a vascular aneurysm located in the right atrioventricular groove. We postulate that the structure represents an aneursymally dilated right coronary artery taking anomalous origin from the pulmonary trunk, with fistulous communication to the right atrium. We discuss the findings relative to concepts of development of the coronary arteries in normal hearts and in pulmonary atresia with an intact ventricular septum.

scholarly journals Extraction of morphometry and branching angles of porcine coronary arterial tree from CT images

2009 ◽  
Vol 297 (5) ◽  
pp. H1949-H1955 ◽  
Author(s):  
Thomas Wischgoll ◽  
Jenny S. Choy ◽  
Ghassan S. Kassab
Keyword(s):  
Coronary Artery ◽  
Coronary Arteries ◽  
Topological Analysis ◽  
Minimum Energy ◽  
Power Laws ◽  
Ct Images ◽  
Arterial Tree ◽  
Circumflex Artery ◽  
Left Circumflex Artery ◽  
The Right

The morphometry (diameters, length, and angles) of coronary arteries is related to their function. A simple, easy, and accurate image-based method to seamlessly extract the morphometry for coronary arteries is of significant value for understanding the structure-function relation. Here, the morphometry of large (≥1 mm in diameter) coronary arteries was extracted from computed tomography (CT) images using a recently validated segmentation algorithm. The coronary arteries of seven pigs were filled with Microfil, and the cast hearts were imaged with CT. The centerlines of the extracted vessels, the vessel radii, and the vessel lengths were identified for over 700 vessel segments. The extraction algorithm was based on a topological analysis of a vector field generated by normal vectors of the extracted vessel wall. The diameters, lengths, and angles of the right coronary artery, left anterior descending coronary artery, and left circumflex artery of all vessels ≥1 mm in diameter were tabulated for the respective orders. It was found that bifurcations at orders 9–11 are planar (∼90%). The relations between volume and length and area and length were also examined and found to scale as power laws. Furthermore, the bifurcation angles follow the minimum energy hypothesis but with significant scatter. Some of the applications of the semiautomated extraction of morphometric data in applications to coronary physiology and pathophysiology are highlighted.

Duplication of the right coronary artery in a patient with hypertrophic cardiomyopathy and myocardial bridging

2009 ◽  
Vol 19 (6) ◽  
pp. 627-629 ◽  
Author(s):  
Haci Ciftci ◽  
Gulten Tacoy ◽  
Guliz Yazici
Keyword(s):  
Coronary Artery ◽  
Hypertrophic Cardiomyopathy ◽  
Coronary Arteries ◽  
Right Coronary Artery ◽  
Myocardial Bridging ◽  
Rare Anomaly ◽  
Arterial Anomaly ◽  
The Right

AbstractHypertrophic cardiomyopathy is a genetic myocardial disorder. In such patients, myocardial bridging is the most frequent encountered coronary arterial anomaly. Patients may, however, on occasion, present with other much rarer malformations of the coronary arteries. Duplication of the right coronary artery is a very rare anomaly. We have now encountered a patient with hypertrophic cardiomyopathy in whom we found myocardial bridging of the anterior interventricular coronary artery and duplication of the right coronary artery. To the best of our knowledge, this association has not previously been described.

Location of Early Atheroma in the Human Coronary Arteries

1981 ◽  
Vol 103 (3) ◽  
pp. 208-212 ◽  
Author(s):  
B. Fox ◽  
W. A. Seed
Keyword(s):  
Coronary Artery ◽  
Coronary Arteries ◽  
Right Coronary Artery ◽  
Left Coronary Artery ◽  
Coronary Artery Lesions ◽  
Circumferential Distribution ◽  
Mechanical Factors ◽  
The Right

We have correlated the location of early atheroma with vessel geometry in the major coronary arteries of subjects dying of noncardiovascular causes under 40 yr of age. We analyzed only those vessels affected minimally by very early (fatty) disease. In each of the three major branches, disease was concentrated close to the entrance and diminished with distance downstream. Circumferential distribution of disease was also not random. In the right coronary artery, lesions were concentrated on the inner wall of the major curvature. Immediately downstream of the entrances of both branches of the left coronary artery, the flow-dividing walls were spared. Further downstream in the left anterior, descending branch plaques followed a spiral distribution. We believe these patterns may be determined by local mechanical factors.

Sign in / Sign up

Export Citation Format

Share Document