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目的:利用高频超声研究颈、股动脉粥样硬化超声标识与冠状动脉粥样硬化的关系。方法:对91例冠状动脉造影受检者术前行双侧颈、股动脉超声检查,测定血管后壁内膜中层厚度(IMT)和斑块厚度,记录斑块数目,半定量估计斑块的严重程度。根据冠状动脉造影结果分为正常组和冠心病组。冠心病组分别按血管狭窄≥50%所累及主要病变血管支数分:单支病变、双支病变、3支病变,其中左主干累及定为双支病变。结果:随着冠状动脉病变程度的增加,颈、股动脉IMT值均增加,冠心病组与正常组比较差异有统计学意义(P<0.05);颈、股动脉斑块分级与冠状动脉病变血管支数分级间显著相关(P<0.05);股动脉斑块对冠心病预测的准确度(69.23%)高于颈动脉斑块(56.04%)。结论:颈、股动脉粥样硬化超声标识似用以预测冠心病的严重程度。
OBJECTIVE: To study the relationship between cervical and femoral atherosclerosis ultrasound signs and coronary atherosclerosis using high frequency ultrasound. Methods: Totally 91 cases of coronary angiography were examined by bilateral neck and femoral artery before operation. The intima-media thickness (IMT) and plaque thickness were measured. The number of plaques was recorded. severity. According to coronary angiography results were divided into normal group and coronary heart disease group. Coronary heart disease group, respectively, according to vascular stenosis ≥50% of the main lesions involved in vessel count points: single disease, double-vessel disease, 3 lesions, including the left main involvement as double-vessel disease. Results: The IMT of the neck and femoral artery were increased with the severity of coronary artery disease. There was significant difference between the CHD group and the normal group (P <0.05). The plaque grade of the neck and femoral artery was similar to that of the coronary artery (P <0.05). The prediction accuracy of femoral artery plaque in coronary heart disease (69.23%) was higher than that of carotid artery plaque (56.04%). Conclusion: Ultrasound identification of cervical and femoral atherosclerosis may be used to predict the severity of coronary heart disease.