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

作者：Song Yong Sub; Lee Whal^*; Park Eun Ah; Chung Jin Wook; Park Jae Hyung

来源：Korean Journal of Radiology, 2012, 13(5): 572-578.

DOI：10.3348/kjr.2012.13.5.572

• Sinoatrial node
• Sinoatrial nodal artery
• SA node
• ECG-gated MDCT
• Korean population

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 +/- 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.

• 出版日期2012-10