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E2179. Coronary Artery Anatomy, Anatomical Variants and Anomalies: Role of Cinematic Rendering
Authors
  1. Dmitry Trifanov; John Hopkins University
  2. Edwarda Golden; John Hopkins University
  3. Nagina Malguria; John Hopkins University
Background
Recent astonishing advances in multidetector computed tomography (MDCT) have led to marked improvement in the imaging of cardiac anatomy and pathology. MDCT allows fast and noninvasive visualization and characterization of native coronary arteries and coronary artery anomalies. Although anomalies of coronary arteries are uncommon, they can be the cause of sudden cardiac death and abnormal cardiac hemodynamics. This presentation will provide imaging-based overview of normal coronary anatomy, coronary artery anomalies, with distinction between hemodynamically significant and non-significant abnormalities. We will use cinematic rendered images for enhanced clarification of structures. Cinematic rendering is a 3D post processing technique which generates photorealistic images based on complex interactions of multiple light rays with matter.

Educational Goals / Teaching Points
Review normal coronary anatomy on MDCT and conventional angiography. This presentation will review cardiac imaging planes and CT techniques, normal development of coronary arterial system. We will review, illustrate, and discuss epidemiology and classification of coronary anomalies, including hemodynamically significant and hemodynamically insignificant coronary anomalies.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
This educational exhibit illustrates the imaging features of normal cardiac anatomy, anomalies of coronary arterial system, role of MDCT in diagnosing coronary anatomic variants with emphasis on clinically significant variants and reviews normal and pathologic conditions. MDCT and cinematic rendering provide a better representation of complex structures and are helpful for surgical planning and communication between medical practitioners.

Conclusion
Radiologists should be familiar with normal coronary anatomy, anatomic variants as well as hemodynamically significant and nonsignificant coronary anomalies and their relevance. Cinematic rendering can help to streamline communication with referring clinicians and potentially improve clinical outcome.