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Rofo 2017; 189(01): 29-38
DOI: 10.1055/s-0042-119452
Review
© Georg Thieme Verlag KG Stuttgart · New York

Coronary Artery Anomalies: Diagnosis and Classification based on Cardiac CT and MRI (CMR) – from ALCAPA to Anomalies of Termination

Article in several languages: English | deutsch
Philipp Heermann
,
Walter Heindel
,
Christoph Schülke
Further Information

Publication History

01 June 2016

26 September 2016

Publication Date:
01 December 2016 (online)

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Abstract

Background Coronary artery anomalies encompass a clinically and anatomically variable spectrum including physiological variants and pathophysiologically relevant anomalies. The majority of the variants has no hemodynamic relevance and is often detected accidentally. The recognition of the rare and relevant anomalies that cause either relevant shunt volumes leading to myocardial ischemia or ventricular tachyarrhythmias with the risk of sudden cardiac death is of major importance.

Methods This review is based on a literature search in PubMed conducted using the key words “coronary artery” and/or “anomaly” and/or “anomalous origin” and/or “myocardial bridging” and/or “coronary artery fistula” and/or “Bland-White-Garland” and/or “ALCAPA”.

Results and Conclusion Coronary artery anomalies can be anatomically subdivided into anomalies of origin, course and termination. The method of choice for anatomical imaging is ECG-triggered or gated multislice CT (MSCT) that provides high spatial resolution and the capability of multiplanar reconstructions. It facilitates the delineation of the precise course of all three coronary arteries and thus allows for correct classification in the anatomical classification system of coronary artery anomalies. The strengths of cardiac magnetic resonance imaging (CMR) are the evaluation of cardiac morphology, myocardial tissue properties and myocardial function. Basic methods are the analysis of myocardial contraction and perfusion with and without pharmacologic stress. Furthermore, potential shunt volumes could be quantified by phase contrast imaging or volumetry.

Key points

  • Coronary artery anomalies are subdivided into anomalies of origin, course and termination.

  • The main imaging task is the differentiation of hemodynamically relevant anomalies from anatomic variants.

  • The method of choice for anatomical imaging is MSCT, whereas structural and functional information is obtained by CMR

Citation Format

  • Heermann P, Heindel W, Schülke C. Coronary Artery Anomalies: Diagnosis and Classification based on Cardiac CT and MRI (CMR) – from ALCAPA to Anomalies of Termination. Fortschr Röntgenstr 2017; 189: 29 – 38

Key words

coronary artery anomalies - Bland-White-Garland syndrome - ALCAPA syndrome - anomalous origin of a coronary artery - myocardial bridging - coronary artery fistula - Cardiac CT - Cardiac MRI (CMR)
 

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