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KMID : 0880420120130050572
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Korean Journal of Radiology
2012 Volume.13 No. 5 p.572 ~ p.578
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Anatomy of the Sinoatrial Nodal Branch in Korean Population: Imaging with MDCT
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Song Yong-Sub
Lee Whal
Park Eun-Ah
Chung Jin-Wook
Park Jae-Hyung
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Abstract
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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.
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KEYWORD
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Sinoatrial node, Sinoatrial nodal artery, SA node, ECG-gated MDCT, Korean population
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