摘要
目的采用灰阶谐波CEUS评价斑块内新生血管与常规超声显示斑块类型之间的关系。方法收集98例颈动脉粥样硬化患者共113个斑块,根据回声特征及形态学分为均质、非均质及溃疡型斑块,均质斑块又分为低回声、等回声及强回声斑块。分析斑块回声特征与造影增强模式特点。结果 CEUS显示低回声斑块新生血管检出率明显高于等回声(χ2=10.64,P=0.001)、强回声(χ2=18.62,P<0.001)及溃疡型斑块(χ2=7.38,P=0.007);但低回声与非均质斑块新生血管检出率的差异无统计学意义(χ2=2.20,P=0.138)。增强的64个斑块中,46个(46/64,71.88%)斑块表现为由管壁外膜向斑块内增强,其中44个弥漫性增强,2个为束状增强;18个(18/64,28.13%)斑块表现为由管腔向斑块内蔓延的稀疏增强。各类型斑块间CEUS增强模式的差异无统计学意义(P>0.05)。结论 CEUS可提供更多有关于斑块内新生血管的信息,有助于进一步判断斑块稳定性。
Objective To explore the relationship between intraplaque neovascularization detected by CEUS and the echogenicity of carotid artery plaques on standard ultrasound images.Methods Ninety-eight patients with carotid atherosclerosis were collected,and a total of 113 carotid plaques were divided into homogeneous,inhomogeneous and ulcerated plaques based on echogenicity and morphology.Homogeneous plaques were classified as hypo-,iso-and hyper-echogenicity.The features of carotid plaques on CEUS were analyzed and compared with plaques echogenicity and morphology.Results The detectable rate of neovascularization in hypoechoic plaques was significantly higher than that in isoechoic plaque（χ^2=10.64,P=0.001）,hyperechoic plaque（χ^2=18.62,P〈0.001）and ulcerated plaque（χ^2=7.38,P=0.007）,while the difference of the detectable rate between hypoechoic plaques and inhomogeneous plaque was not statistically significant（χ^2=2.20,P=0.138）.In sixty-four enhanced plaques,46plaques（46/64,71.88%）were enhanced from vessel wall to plaque,including 44 plaques were diffuse enhanced,2plaques were bundles enhanced,and 18plaques（18/64,28.13%）were enhanced from the vessel cavity to plaque.There were no significant differences on CEUS mode among plaques with different echogenicity（P〉0.05）.Conclusion CEUS provides more valuable information about intraplaque neovascularization,It is helpful to assess the stability of the plaques.
出处
《中国医学影像技术》
CSCD
北大核心
2015年第1期28-31,共4页
Chinese Journal of Medical Imaging Technology
基金
宁夏自治区科技攻关项目
关键词
超声检查
造影剂
颈动脉
动脉粥样硬化
新生血管
Ultrasonography
Contrast media
Carotid artery
Atherosclerosis
Neovascularization
