Remarkable Anatomic Anomalies of Coronary Arteries and Their Clinical Importance

Duran, Cihan; Kantarcı, Mecit; Subaşi, İrmak Durur; Gülbaran, Murat; Sevimli, Serdar; Bayram, Ednan; Eren, Suat; Karaman, Adem; Fil, Fadime; Okur, Aylin

doi:10.1097/01.rct.0000230004.38521.8e

Cited by 61 publications

(43 citation statements)

References 41 publications

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“…[16] For example, in the absence of an LMCA, a completely normal LAD and Cx can be incorrectly interpreted as stenotic if the LMCA filling cannot be observed. Such errors do not occur when using coronary angiography methods performed with MSCT.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of coronary artery anomalies using 128-Slice computed tomography

Kayan¹

2012

Turk Gogus Kalp Dama

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Bul gu lar: Sağ dominans, sol dominans ve kodominans oranı sırasıyla %80.7, %8.4 ve %10.8 idi. Konus arterin %16.86 oranında sağ sinüs valsalvadan ve %83.1 oranında sağ koroner arterden (sağ KA) köken aldığı gözlemlendi. Sinüs nod arterin (SNA) %77.1 oranında sağ KA'dan, %18.1 oranında sirkumfleks (Cx) arterden, %2.4 oranında sol ana koroner arterden (sol ana KA) ve %2.4 oranında sağ sinüs valsalvadan köken aldığı belirlendi. Hastaların %30.12'sinde ramus intermedius mevcuttu. Kırk sekiz hastada (%57.8) koroner arter anomalisi saptandı. Bu hastaların %1.2'sinde sol ana KA noksanlığı; %6'sında komissural köken; %1.2'sinde koroner hipoplazi; %4.8'inde kontralateral sinüs köken anomalisi ve %43.3'ünde miyokard köprüsü mevcuttu.So nuç:128 kesitli BT, koroner arter varyasyonlarının ve anomalilerinin saptanmasında güvenilir, ayrıntılı ve doğru bilgi sağla-yan invaziv olmayan bir yöntemdir. 128 kesitli BT'nin koroner arter anomalilerinin tanı ve cerrahi tedavisinde yüksek öneme sahip olduğu kanısındayız.Anah tar söz cük ler: Anjiyografi; anomali; bilgisayarlı tomografi; koroner damarlar; tanı.Background:In this study, we aimed to investigate the efficacy of a 128-slice computed tomography (CT) device in detecting anatomical variations and anomalies of coronary arteries and to compare the results obtained with literature data.

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Section: Discussionmentioning

confidence: 99%

Evaluation of coronary artery anomalies using 128-Slice computed tomography

Kayan¹

2012

Turk Gogus Kalp Dama

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“…The LMCA is absent in 0.41% of cases (6). In this condition, the left anterior descending artery (LADA) and Cx artery arise separately or with a common ostium.…”

Section: Agenesis Of the Lmcamentioning

confidence: 99%

“…3), retroaortic, or interarterial course. Determining the course of the vessel is important because the interarterial course is frequently associated with a poor prognosis (6,16,20). Unlike CCA, the MDCT-CA images can be reconstructed in multiple planes and in 3D; thus, MDCT-CA provides information on the route of the coronary arteries relative to the cardiac chambers and great vessels, ensuring an accurate diagnosis.…”

Section: Ectopic Origin Of the Lmca From The Right Sinus Of Valsalvamentioning

confidence: 99%

“…In this condition, the left anterior descending artery (LADA) and Cx artery arise separately or with a common ostium. This anomaly is common and accounts for 30.4% of all coronary anomalies (6,10). If the LMCA is absent, one of the following results may occur: a) the LADA and left Cx arteries, both of normal length and course, may arise from the left sinus of Valsalva separately or with a common ostium ( Fig.…”

Section: Agenesis Of the Lmcamentioning

confidence: 99%

“…An LMCA originating from the right sinus of Valsalva is a rare coronary anomaly (6,19). An LMCA originating from the right sinus of Valsalva follows one of four courses: a septal, anterior free wall (Fig.…”

Section: Ectopic Origin Of the Lmca From The Right Sinus Of Valsalvamentioning

confidence: 99%

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Clinical situations where coronary CT angiography confers superior diagnostic information in comparison to coronary angiography

Kantarcı

Doğanay

Karçaaltıncaba

et al. 2011

Diagn Interv Radiol

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261C oronary artery disease is responsible for millions of deaths per year in developed countries (1, 2). Early recognition of coronary artery disease is important for the prevention of its related complications and improving prognosis (3). Catheter angiography has been considered the gold standard imaging method for evaluating the coronary tree. The major advantages of conventional coronary angiography (CCA) are its high spatial and temporal resolutions and the option of directly performing interventions, such as balloon dilation or coronary stent placement (4). However, CCA is an invasive procedure that carries the risk of morbidity and mortality (3). In addition, CCA provides only luminal data and is limited in revealing changes in the vessel wall and the adjacent soft tissues. Conversely, multidetector computed tomography coronary angiography (MDCT-CA) not only provides visualization of the vessel lumen but also displays the vessel wall and surrounding soft tissues, allowing for the detection of various congenital or acquired abnormalities of the coronary arteries that may not be evident with CCA (3).In this article, on the basis of our experience with more than 15 000 MDCT-CA from seven different centers, we reviewed clinical conditions in which MDCT-CA may be more helpful compared with CCA. Coronary CT techniqueWith the advent of technological refinements in the last decade, MDCT-CA has gained widespread use for the evaluation of coronary artery diseases. Currently, state-of-the-art computed tomography (CT) systems can simultaneously acquire 64 or more submillimeter sections with a gantry rotation time of less than half a second. Previous limitations of CT for evaluating the vascular system, associated with older generation scanners, have now been eliminated. Presently, a thinner section thickness allows for isotropic voxels, which is essential for optimum high-resolution, three-dimensional (3D) reconstruction and other postprocessing displays, such as maximum projection reformatting (MPR) in any selected plane. Faster scanners have resulted in shorter scans and shorter contrast bolus durations, allowing for the use of less contrast agent at a higher flow rate to achieve greater luminal enhancement. Motion artifacts from breathing are no longer a problem since highresolution imaging of the entire heart can be obtained in a single breath hold. Electrocardiography (ECG) gating techniques improve temporal resolution and minimize imaging artifacts caused by cardiac motion. With more recent technological advances, a reduction in radiation dose, for example, by the utilization of prospective gating, has occurred without any deterioration in diagnostic image quality (5).In our centers, images were acquired using either 16-or 64-MDCT scanners. Eighty-five to one hundred milliliters of iodinated contrast medium (Ultravist 370, Schering, Berlin, Germany) was intravenously ABSTRACT In this review, we aimed to outline the clinical and pathological conditions for which multidetector computed tomography coronary angiogr...

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Myocardial bridges: A meta‐analysis

et al. 2021

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Myocardial bridges are anatomical entities characterized by myocardium covering segments of coronary arteries. In some patients, the presence of a myocardial bridge is benign and is only incidentally found on autopsy. In other patients, however, myocardial bridges can lead to compression of the coronary artery during systolic contraction and delayed diastolic relaxation, resulting in myocardial ischemia. This ischemia in turn can lead to myocardial infarction, ventricular arrhythmias and sudden cardiac death. Myocardial bridges have also been linked to an increased incidence of atherosclerosis, which has been attributed to increased shear stress and the presence of vasoactive factors. Other studies however, demonstrated the protective roles of myocardial bridges. In this study, using systematic review and a meta‐analytical approach we investigate the prevalence and morphology of myocardial bridges in both clinical imaging and cadaveric dissections. We also discuss the pathophysiology, clinical significance, and management of these anatomical entities.

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Remarkable Anatomic Anomalies of Coronary Arteries and Their Clinical Importance

Cited by 61 publications

References 41 publications

Evaluation of coronary artery anomalies using 128-Slice computed tomography

Evaluation of coronary artery anomalies using 128-Slice computed tomography

Clinical situations where coronary CT angiography confers superior diagnostic information in comparison to coronary angiography

Myocardial bridges: A meta‐analysis

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