Intra-atrial course of the right coronary artery demonstrated at computed tomography coronary angiography

Yeong Shyan Lee1, Gorka Bastarrika, U Joseph Schoepf

  • 1Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston, SC 29401, USA. schoepf@musc.edu

Insights

Anomalies of the right coronary artery are rare but increasingly diagnosed with CT angiography. This case highlights an intra-atrial course variant, crucial for preventing surgical complications.

Area of Science:

  • Cardiovascular Imaging
  • Anatomical Variations
  • Interventional Cardiology

Background:

  • Anomalies of the right coronary artery (RCA) are uncommon but significant.
  • Noninvasive imaging, particularly coronary computed tomography angiography (CCTA), is improving detection rates.
  • Unrecognized RCA anomalies can lead to severe complications during cardiac procedures.

Observation:

  • This report details a specific case of an anomalous RCA.
  • The anomaly involved an intra-atrial course of the right coronary artery.
  • Diagnosis was achieved noninvasively using dual-source computed tomography coronary angiography.

Findings:

  • The study identified an intra-atrial course of the right coronary artery.
  • This specific anomaly was diagnosed using advanced dual-source CT angiography.
  • The findings underscore the importance of detailed anatomical assessment.

Implications:

  • Accurate noninvasive diagnosis of RCA anomalies is critical for patient safety.
  • Recognition of variants like the intra-atrial course can prevent intraoperative or interventional complications.
  • Enhanced understanding of coronary artery anomalies improves surgical and interventional planning.

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