超声造影定量评价动脉粥样硬化斑块新生血管及其与组织病理学的相关性

来源 :中华医学会第十五次全国超声医学学术会议 | 被引量 : 0次 | 上传用户:enhanyi
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
目的:应用CEUS技术定量评价动脉粥样硬化斑块增强强度及其与病理染色所示的新生血管密度的相关性.资料与方法:选取新西兰白兔25只,高脂饲养4周后,以球囊扩张腹主动脉,再高脂饲养16周,建立动脉粥样硬化模型;行常规超声及CEUS检查,观察不同类型斑块的增强情况,应用时间-强度曲线定量分析动脉粥样硬化斑块的增强强度,以CD31染色观察斑块内新生血管的密度.应用非配对t检验比较软斑与硬斑造影强度及新生血管密度的差异;Pearson相关分析动脉粥样硬化斑块CEUS增强强度与斑块新生血管密度的相关性.结果:二维超声诊断为软斑的斑块在CEUS中的增强强度明显高于硬斑(P<0.05);软斑的新生血管密度明显高于硬斑(P<0.05);斑块内新生血管密度与斑块造影增强强度存在明显相关性(r=0.75,P<0.001),与斑块增强强度/管腔增强强度亦存在明显相关性(r=0.68,P<0.001).结论:CEUS可定量评价兔动脉粥样硬化斑块的增强情况;斑块增强强度与斑块内新生血管密度具有良好的相关性.
其他文献
Objectives: The aim of this study was to propose a new staging system using a risk model including conventional ultrasound (US) and acoustic radiation force impulse (ARFI) elastography for predicting
会议
Objective: To evaluate the effect of ATP on myocardial ischemia reperfusion injury in rabbits by ultrasound speckle tracking echocardiography (STE).Methods: Forty-two rabbits were randomly divided int
会议
Objective : To obtain the Annular plane systolic excursion difference (APSED) of fetuses in second and late trimester by free angle M-mode (FAM) and tissue motion of annular displacement (TMAD) in ord
会议
Objective: To develop Z-score reference ranges for tricuspid annular plane systolic excursion (TAPSE) in normaI fetuses from the measurements of gestational age (GA), biparietal diameter (BPD) or femu
会议
Objective: The purpose of this study was to assess the effects of Qili Qiangxin capsule on Doxorubicin-Induced Cardiomyopathy by Speckle Tracking Imaging.Methods: We randomly divided 40 Wistar rats in
会议
Background: Gene therapy has great potential for human diseases.Development of efficient delivery systems is critical to its clinical translation.Recent studies have shown that microbubbles in combina
会议
Objective: To retrospectively investigate the role of Doppler ultrasonography (DUS) in the early detection of splenic steal syndrome (SSS).Methods: This retrospective case-control study was approved b
会议
Objective: To evaluate the diagnostic performance of shear wave elastography (SWE) in the differentiation of malignant and benign thyroid nodules with coexistent Hashimotos thyroiditis (HT) .Subjects
会议
Objective: To evaluate right ventricular function by two-dimensional speckle tracking imaging (2DSTI) in patients with systemic sclerosis (SSc).Methods: A total of 34 patients with SSc were enrolled,
会议
Purpose: To investigate the clinical and ultrasound characteristics of infantile hepatic hemangioendothelioma (IHHE) in differentiating IHHE from other focal liver lesions (FLLs) in children, compared
会议