【摘要】 目的:利用彩色多普勒超声探讨不同年龄颈动脉粥样硬化的发生率及其狭窄程度的变化。方法:对在本院超声科进行颈动脉超声检查的日常门诊及住院患者1647例进行详细的颈动脉超声检测,并按不同年龄段分组,观察各年龄组颈动脉粥样硬化的发生率及其狭窄程度。结果:1647例患者检出颈动脉粥样硬化共741例,发生率为44.9%;其中30~39岁6%(4/65),40~49岁15%(21/141),50~59岁24%(87/359),60~69岁45%(196/439),70~79岁65%(302/467),80~89岁74%(131/176);狭窄程度均以轻度多见,占85.9%(637/741);中度以上狭窄少见,占14.1%(104/741)。结论:颈动脉粥样硬化的发生率随年龄增长而增加,但狭窄程度无论哪个年龄组均以轻度狭窄多见,中度以上狭窄少见。更多还原

【Abstract】 Objective:To analyze the frequency and severity of carotid atherosclerosis in different age groups using color doppler ultrasonography.Methods:1 647 outpatients and inpatients were divided into different groups according their ages.All these subjects underwent carotid ultrasonic scan,and the results were compared between groups.Results:of 1 647 patients,741(44.9%) had carotid atherosis,with 6%(4/65)in group aged 30~39,15%(21/141) in group aged 40~49,24%(87/359) in group aged 50~59,45%(196/439)in group aged 60~69,65%(302/467),in group aged 70~79;and 74%(131/176) in group aged 80~89.Most of these cases were of low-grade stenosis(85.9%,637/741);stenosis over mid-grade was rare,and the percentage of it was 14.1%(104/741) only.Conclusions:Frequency of carotid atheros tends to increase with age.However,most of these cases were of low-grade stenosis,while mid-grade stenosis was rare.更多还原