Abstract:

Abstract:Objective To investigate the correlation and the clinical significance between the overall classification on color Doppler ultrasound and the clinical stages of atherosclerosis obliterans(ASO)，and evaluate the extent of arterial lesions comprehensively. Methods 125 patients                         of ASO，who were divided into three groups of mild，moderate and severe with Color Doppler ultrasound according to differences of occlusion，quantity，degree of stenosis and collateral number，were analyzed with clinical stages，then  their associations were studied with Spearman rank analysis. Results The clinical manifestations of ASO patients who were divided into three groups of mild，moderate and severe according to overall classification on color Doppler ultrasound were respectively gradually serious，which had  positive correlations with the stages of Ⅰ，Ⅱand Ⅲ according to clinical stages. Spearman rank analysis showed that the correlation coefficients (rs) was 0.797 2 between two groups(P<0.01),there was good consistency between the overall classification on color Doppler ultrasound and the clinical stages of ASO. Conclusion The overall classification of ASO on color Doppler ultrasound has considered impact of many other factors on the clinical symptoms，such as the level of the local narrow，narrow scope，segments of occlusion and collateral arteries，which divids the lesions more objectively，shows good consistency with the clinical stages.

Key words: arteriosclerosis obliterans；overall classification on color Doppler ultrasound；clinical stages