【摘要】 目的　探讨利用多层螺旋CT检测窦房结动脉的临床价值。方法　利用CT冠状动脉成像检测23 例窦性心律失常的病人窦房结动脉的直径、长度、窦房结动脉起点与其起源的右冠状动脉起点之间的距离(S -O间距)、左侧窦房结动脉起点与旋支起点之间的距离(LO -O间距)、窦房结动脉起始段与其起点近端冠状动脉之间的夹角(S- C夹角)以及窦房结动脉的开口以前的冠状动脉壁上钙化、软斑块或管腔狭窄的数目(S- O病变),并将以上结果与对照组同样的检测指标进行对照分析。结果　多层螺旋CT可以清楚地显示窦房结动脉的位置和形态特点,冠状动脉病变对测得的窦房结动脉各项指标无明显影响(P>0.05),对照组和病变组的窦房结动脉的长度和S O病变数目具有统计学差异(P<0.05)。结论　利用多层螺旋CT检测窦房结动脉具有一定的临床应用价值。更多还原

【Abstract】 Objective To probe the clinical significance of detection of sinoatial node artery in adults with multi-slice CT. Methods Twenty-three cases with sinus arrhythmia were examined with multi-slice CT coronary artery angiography. The length and diameter of the sinoatial node artery, the distance from the origin of the sinoatial node artery to the origin of the coronary artery, the distance from the origin of the left sinoatial node artery to the origin of circumflex branch, the angle between the sinoatial node artery and the proximal segment of the coronary artery, and the number of plaque and calcification on the coronary artery wall before the origin of the sinoatial node artery (the S-O lesions) on CT were measured. All the results measured above were compared with those in control group. Results The distribution and morphological features of the sinoatial node artery were shown clearly on CT coronary artery angiography. There was no correlation between the coronary artery lesions and the characteristics of the sinoatial node artery on CT ( P >0.05), and there was difference of the number of the S-O lesions or length of the sinoatial node artery between in sick and in control group ( P <0.05). Conclusion The sinoatial node artery detected with multi-slice CT coronary artery angiography allows to be used clinically.更多还原