超声极速成像技术评价冠状动脉慢血流患者颈动脉脉搏波传导速度

目的 采用超声极速成像技术（UF）评价冠状动脉慢血流（CSF）患者颈动脉脉搏波传导速度（PWV）。方法 收集临床诊断为CSF的患者34例（CSF组）和40例健康者（对照组），进行颈动脉超声检查，测量颈总动脉的内径（D）、内-中膜厚度（IMT）及收缩期峰值血流速度（PSV），同时采用UF技术测量颈总动脉前壁收缩起始时和结束时PWV（BS和ES）。结果 CSF组的BS和ES均大于对照组（P均<0.05），而D、IMT及PSV差异均无统计学意义（P均>0.05）。结论 CSF患者的BS和ES增大，CSF可能是动脉硬化的早期表现。UF技术可准确、敏感检测早期动脉硬化。

Evaluation of arterial pulse wave velocity in patients with coronary slow flow using ultrafast imaging

Objective To access the carotid arterial pulse wave velocity (PWV) in patient with coronary slow flow (CSF) with ultrafast imaging (UF). Methods Thirty-four patients with CSF (CSF group) and forty healthy people (control group) were recruited. Routine carotid ultrasonography was performed to measure carotid artery inner diameter (D), intima-media thickness (IMT) and peak systolic velocity (PSV), and carotid arterial PWVs were measured by UF, including the beginning of systolic (BS) value and end of systolic (ES) value. Results The BS and ES in CSF group were significantly higher than those in control group (both P<0.05), while there were no significant statistical differences of D, IMT and PSV between the two groups (all P>0.05). Conclusion BS and ES increases in CSF patients, suggesting that CSF may be an early sign of atherosclerosis. And UF technology can be served as an accurate and sensitive diagnostic imaging modality in detection of early atherosclerosis.