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http://dx.doi.org/10.3348/kjr.2012.13.5.572

Anatomy of the Sinoatrial Nodal Branch in Korean Population: Imaging with MDCT  

Song, Yong Sub (Department of Radiology, Seoul National University College of Medicine)
Lee, Whal (Department of Radiology, Seoul National University College of Medicine)
Park, Eun-Ah (Department of Radiology, Seoul National University College of Medicine)
Chung, Jin Wook (Department of Radiology, Seoul National University College of Medicine)
Park, Jae Hyung (Department of Radiology, Seoul National University College of Medicine)
Publication Information
Korean Journal of Radiology / v.13, no.5, 2012 , pp. 572-578 More about this Journal
Abstract
Objective: To evaluate, on a retrospective basis, the anatomic characteristics of the arterial supply to the sinoatrial node (SAN) in the Korean population using an ECG-gated multi-detector CT (MDCT). Materials and Methods: The electrocardiographic-gated MDCTs of 500 patients (258 men and 242 women; age range, 17-83 years; mean age, 58.6 ${\pm}$ 12.04 years) were analyzed retrospectively. In each case, the SAN artery (arteries) was named according to a special nomenclature with regard to origin, course, and termination. Results: A total of 516 SAN arteries were visualized in 496 patients. The SAN was supplied by a single artery in 476 (96.4%) cases and by 2 arteries in 18 (3.6%) cases. The SAN originated from the right coronary artery in 265 (53.4%) cases and from the left circumflex in 213 (43%) cases. Conclusion: This study can provide basic data on variations of the SAN artery in the Korean population.
Keywords
Sinoatrial node; Sinoatrial nodal artery; SA node; ECG-gated MDCT; Korean population;
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