IVUS血管内超声基础和临床课件.ppt
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1、The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。IVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。血管内超声基础和进展血管内超声基础和进展一、一、血管内超声基础二、血管内超声和冠
2、脉造影的关系二、血管内超声和冠脉造影的关系三、主要适应症三、主要适应症四、什么是四、什么是VHIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Rotating ElementDrive ShaftMulti-element ArrayThe CardiovascularResearch FoundationLenox Hill Heart and VascularInstitu
3、te of New YorkThere are two types of imaging systems:Mechanical(rotating transducer)and Electronic ArrayIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。The CardiovascularResearch FoundationLenox Hill Heart and Vasc
4、ularInstitute of New YorkIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。ALThe CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New YorkIVUS 培训 The CardiovascularResearch FoundationLenox H
5、ill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Low dynamic rangeHigh dynamic rangeThe CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New YorkIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文
6、档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Intimal disease(plaque)is dense and will appear whiteMedia is made of homogeneous smooth muscle cells and does not reflect ultrasound(appears dark)Adventitia has sheets of collagen that reflect a lot of ultrasound(appears white)The CardiovascularResearch Foundat
7、ionLenox Hill Heart and VascularInstitute of New YorkIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New YorkIVUS 培训 The Cardiovascular
8、Research FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。CalciumBright echoes(brighter than the adventitia)Obstructs the penetration of ultrasound(acoustic shadowing)only the leading edge is detected and thickness cannot be determined.Results in rev
9、erberations-the oscillation of ultrasound between transducer and calcium causing repeating arcsIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。The CardiovascularResearch FoundationLenox Hill Heart and VascularInsti
10、tute of New YorkIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Fibrotic PlaqueAs bright or brighter than the adventitia(hyperechoic)Majority of atherosclerotic lesions are fibroticVery dense,fibrous plaques may ca
11、use so much acoustic shadowing that they could be misclassified as calcifiedIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Soft PlaqueNot as bright as the adventitia(hypoechoic)“Soft”refers to the low echogenicity
12、,generally due to high lipid content in a mostly cellular lesion.Reduced echodensity may also be due to:necrotic zone within plaqueintramural hemorrhagethrombusIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Vulner
13、able PlaqueIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Mixed PlaqueIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Example o
14、f ThrombusIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Examples of ThrombusIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Ba
15、sic Measurements(I)External elastic membrane(EEM)cross sectional area(CSA)=total arterial CSA =media areatracing the boundary between the dark media and thebright adventitia(i.e.,the apparent outer edge of the media stripe)Lumen CSAMax and min lumen diametersStent CSA Max and min stent diametersPlaq
16、ue+media(P+M)CSA=EEM-Lumen CSA in non-stented lesions=EEM-stent CSA in stented lesionsIntimal hyperplasia CSA=Stent-Lumen CSAIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Basic Measurements(II)Eccentricity=maximu
17、m/minimum P+M thicknessPlaque Burden(=cross-sectional narrowing or%plaque area)=P+M/EEM CSARemodeling Index=Lesion/Reference EEM CSAArea Stenosis=(Reference-Lesion)/Reference Lumen CSAArc of calciumLesion lengths measured using motorized transducer pullback,ideally at 0.5 mm/secIVUS 培训 The Cardiovas
18、cularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Non-stented arteryEEMGuidewiresIVUS catheterPlaque+mediaLumenIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系
19、网站或本人删除。Stented ArteryEEMLumenStentGuidewireIVUS catheterPlaque+mediaIntimal hyperplasiaIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of
20、 New YorkIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New YorkIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and Vasc
21、ularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。In-Stent RestenosisIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。血管内超声基础和进展血管内超声基础和进展一、血管内超声基础一、血管内超声基础二、二、血管内超声和冠脉造影的关系三、主要适应症三、主要适应症四、什么是四、什么是VHIV
22、US 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Limitations of Coronary AngiographyFocal Disease50%Lesion50%LesionDiffuse DiseaseAngiogram SilhouetteIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and V
23、ascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Angiographically Silent DiseaseIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Coronary Remodeling HypothesisCompenatory ExpansionMaintains Consist
24、ant LumenExpansionOvercome:Lumen NarrowsNormal VesselMinimal CADModerate CADSevere CADIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Dicotomous Classification of RemodelingIVUS 培训 The CardiovascularResearch Founda
25、tionLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。ABDEffCFdistalLumenebebLumenccdistalIVUS 培训 The CardiovascularResearch FoundationLenox Hill Heart and VascularInstitute of New York文档仅供参考,不能作为科学依据,请勿模仿;如有不当之处,请联系网站或本人删除。Limitations of Coronary AngiographyAn
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