医学IVUS血管内超声基础和临床专题.ppt

IVUS血管内超声基础和临床

IVUS培训

血管内超声基础和进展一、血管内超声基础二、血管内超声和冠脉造影的关系三、主要适应症四、什么是VHIVUS培训

RotatingElementDriveShaftMulti-elementArrayTheCardiovascular

ResearchFoundationLenoxHillHeartandVascular

InstituteofNewYorkTherearetwotypesofimagingsystems:Mechanical(rotatingtransducer)andElectronicArrayIVUS培训

HighfrequencysoundwavesechooffvesselwallsandaresentbacktosystemSystemelectronicsprocessthesignalTheCardiovascular

ResearchFoundationLenoxHillHeartandVascular

InstituteofNewYorkIVUS培训

ALA=AxialResolutionL=LateralResolutionTheCardiovascular

ResearchFoundationLenoxHillHeartandVascular

InstituteofNewYorkIVUS培训

LowdynamicrangeHighdynamicrangeTheCardiovascular

ResearchFoundationLenoxHillHeartandVascular

InstituteofNewYorkIVUS培训

Intimaldisease(plaque)isdenseandwillappear‘white’Mediaismadeofhomogeneoussmoothmusclecellsanddoesnotreflectultrasound(appearsdark)Adventitiahas‘sheets’ofcollagenthatreflectalotofultrasound(appearswhite)TheCardiovascular

ResearchFoundationLenoxHillHeartandVascular

InstituteofNewYorkIVUS培训

TheCardiovascular

ResearchFoundationLenoxHillHeartandVascular

InstituteofNewYorkIVUS培训