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| Value of Carotid Artery Red-time Three-dimensional Ultrasonography for Evaluation of Risl of CornonaryHeart Disease |
| The Second Hospital Affiliated to Shenyang Medical School，Shenyang 110002，China |
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Abstract Objective：To probe the value of using real-time three-dimensional ultrasonography for the evaluationof carotid atherosclerosis and the degree of coronary stenosis of patients with coronary heart disease.Method：A total of100 patients were suspected coronary heart disease after had being diagnosed by coronary angiography（CAG）.Theywere divided into two groups.All of these patients undertook carotid artery color doppler ultrasonography（2D） and realtime
three-hree-dimensional ultrasonography（ 3D）within CAG diagnosis，and carotid artery plaques were evaluated.Thedependability between carotid atherosclerosis and coronary atherosclerotic heart disease were studied.Result：There wasstatistical significant difference between coronary heart disease group and control carotid plaques group（P<0.05）.Theplaque detection rate raised significantly as coronary artery lesions involving the count increased.Also statistical difference
was existed between patients between single-branch and multi-branches coronary artery disease（P<0.05）.As coronaryatherosclerosis progressed，carotid plaques also become more and more.And lots of plaques were soft plaques and mixedplaques.Statistical difference existed between 3D and 2D in single-branch or multi-branches coronary artery disease andsuperficial ulcer of soft and mixed plaques detection rate（P<0.05）.There was significant positive linear correlation
between carotid atherosclerosis and coronary atherosclerosis（P<0.05）.The superficial ulcer of plaques detection rateof 3D diagnosis was much better than of 2D diagnosis.Conclusion：Using real-time three-dimensional ultrasonographyfor the evaluation of carotid atherosclerosis， the degree of coronary stenosis patients with coronary heart disease can beevalued.Major adverse cardiovascular events is effectively predicted.
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