国人窦房结动脉解剖特点的初步探讨—156例CTA结果分析  

A preliminary study on anatomical characteristics of the sinoatrial nodal artery in Chinese: analysis of 156 cases of CTA

作　　者：田本祥 张化一[1] 姜相森[1] 阴祖栋[1] 

机构地区：[1]山东省交通医院医学影像科,山东济南250031

出　　处：《医学影像学杂志》2012年第10期1661-1664,共4页Journal of Medical Imaging

摘　　要：目的探讨256层CT评价国人窦房结动脉形态学特征的应用价值。方法回顾性分析256层冠状动脉CTA患者156例,对窦房结动脉的起源部位、数目、走行、分支、终止部位进行系统分析观察。结果 98例窦房结动脉单支起源于右冠状动脉近端,37例单支起源于左旋支近端,20例观察到有两条窦房结动脉,分别来自右冠状动脉及左旋支,距右冠状动脉开口45mm、左旋支开口32mm范围内。1例没有观察到窦房结动脉。窦房结动脉发出后至上腔静脉口周围,沿途发出分支供应邻近心房、心耳及房间隔。结论 256层CT冠状动脉成像能够有效显示窦房结动脉,正确评价窦房结动脉的解剖起源、数目、走行及沿途分支。Objective To investigate the value of morphologic features of sinoatrial nodal artery （SNA） with 256 slice CT. Methods The anatomic origin, number, course and branches of the SNA were observed and analyzed retrospectively in 156 patients underwent 256 slice CT coronary angiography. Results A single SNA originated from the right coronary artery （RCA） in 98 and from of the LCX artery in 37 patients. Dual blood supply to the sinuatrial nodal was seen in 20 pa- tients. The distance from the origin of right SNA to the RCA ostium was in the range of 0-45 mm and the left SNA to the left circumflex （LCX） artery ostium was in the range of 2-32 mm. SNA was not observed in one patient. Following the SNA originated from the RCA or （and） LCX, small atrial branches were commonly seen supplying the left atrium, the anterior part of the interatrial septum, the left atrial appendage and the right atrium. Conclusion 256 slice CT coronary artery imaging could effectively display SNA, evaluate the anatomic origin, number, the course and branches correctly.

关 键 词：窦房结动脉 形态特征 冠状动脉成像 体层摄影术 X线计算机 

分 类 号：R541[医药卫生—心血管疾病] R814.42[医药卫生—内科学]