血管内超声检测在体粥样硬化冠状动脉的代偿性扩张及其与斑块性质的关系  

A Study on Compensatory Enlargement of the Atherosclerotic Coronary Artery and Its Relation to the Quality of the Plaque by Intravascular Ultrasound Image in vivo

作　　者：徐泽昌[1] 田军[1] 李鲁光[1] 肖竞[1] 张桂珍[1] 崔吉君[1] 

机构地区：[1]北京军区总医院心内科,100700

出　　处：《中国超声医学杂志》1997年第10期42-44,共3页Chinese Journal of Ultrasound in Medicine

摘　　要：取血管内超声检测的粥样硬化冠状动脉血管段图像共25帧，测量血管总面积、管腔面积、管腔最大、最小径。将图像分为软、硬斑块两组。计算斑块面积及管腔狭窄程度。结果：血管总面积随斑块面积扩大而增加。软斑块组血管总面积与斑块面积呈明显正相关（r＝0．83，p＝0．003，b＝1．44），硬斑块组亦有相关关系（r＝0．64，p＝0．01，b＝0．65）。结论：粥样硬化冠状动脉存在代偿性扩张；具软斑块者呈过度代偿性扩大，硬斑块者代偿不全。Twenty five IVUS images of the atherosclerotic coronary arteries were analyzed. The total vessel area (TVA), lumen area (LA), maximal and minimal diameters were measured. The images were divided into soft-plaque and bard-plaque groups. Then plaque area (PA) and percent lumen stenosis (PLS) were calculated. Results: TVA increased as PA expanded. TVA had significant correlation to PA in soft-plaque group (r=0.83, p=0.003, b=1.44) and hard-plaque group (r=0.64, p=0.01, b=0.65). A significant negative correlation was found between LA and PLS in hard-plaque group (r=-0.81), Conclusions: Atherosclerotic coronary arteries underwent compensatory enlargement. Coronary arteries with soft plaques over-compensated. But the compensation in arteries with hard plaques was inadequate.

关 键 词：斑块 冠心病 超声波诊断 代偿性扩张 

分 类 号：R541.404[医药卫生—心血管疾病]