血管内超基础知识课件整理

血管内超基础知识怎样思想，就有怎样的生活血管内超基础知识怎样思想，就有怎样的生活1血管内超声基础知识钱杰南方会2008血管内超声基础知识2血管内超声基础知血管内超声基础血管内超声和冠脉造影的关系主要适应症四、什么是VH南方会2008血管内超声基础知3Therearetwotypesofimagingsystems:Mechanical(rotatingtransducer)andElectronicArray南方会2008Therearetwotypesofimaging4Highfrequencysoundwavesechooffvesselwallsandaresentbackosystemsystemelectronicsprocessthesignal南方会2008Highfrequencysound5Intimaldisease(plaque)isdenseandwillappearwhiteMediaismadeofhomogeneoussmoothmusclecellsanddoesnotreflectultrasound(appearsdark)Adventitiahassheets'ofcollagenthatreflectalotofultrasound(appearswhite)南方会2008Intimaldisease(plaque)6NormalDiseased南方会2008Normal7CalciumBrightechoes(brighterthantheadventitia)Obstructsthepenetrationofultrasound(acousticshadowing)onlytheleadingedgeisdetectedandthicknesscannotbedeterminedResultsinreverberationstheoscillationofUtrasoundbetweentransducerandcalciuncausingrepeatingarcs南方会2008Calcium8CalciumisquantifiedbyDeepmeasuringthe“arctencompassesCalciumisclassifiedbyitslocationwithintheplaqueSuperficialcalciumisclosertothelumenthantotheadventitiaDeepcalciumisclosertotheadventitiathantothelumenSuperficial南方会2008Calciumisquantifiedby9FibroticPlaqueAsbrightorbrighterthantheadventitia(hyperechoicMajorityofatheroscleroticlesionsarefibroticVerydense,fibrousplaquesmaycausesomuchacoustishadowingthattheycouldbemisclassifiedascalcified南方会2008FibroticPlaque10SoftPlaqueNotasbrightastheadventitia(hypoechoicSoftreferstothelowechogenicity,generallyduetohighlipidcontentinamostlycellularlesionReducedechodensitymayalsobeduetonecroticzonewithinplaqueintramuralhemorrhagethrombi南方会2008SoftPlaque11血管内超基础知识课件整理12血管内超基础知识课件整理13血管内超基础知识课件整理14血管内超基础知识课件整理15血管内超基础知识课件整理16血管内超基础知识课件整理17血管内超基础知识课件整理18血管内超基础知识课件整理19血管内超基础知识课件整理20血管内超基础知识课件整理21血管内超基础知识课件整理22血管内超基础知识课件整理23血管内超基础知识课件整理24血管内超基础知识课件整理25血管内超基础知识课件整理26血管内超基础知识课件整理27血管内超基础知识课件整理28血管内超基础知识课件整理29血管内超基础知识课件整理30血管内超基础知识课件整理31血管内超基础知识课件整理32血管内超基础知识课件整理33血管内超基础知识课件整理34血管内超基础知识课件整理35血管内超基础知识课件整理36血管内超基础知识课件整理37血管内超基础知识课件整理38血管内超基础知识课件整理39血管内超基础知识课件整理40血管内超基础知识课件整理41血管内超基础知识课件整理42血管内超基础知识课件整理43血管内超基础知识课件整理44血管内超基础知识课件整理45血管内超基础知识课件整理46血管内超基础知识课件整理47血管内超基础知识课件整理48血管内超基础知识课件整理49血管内超基础知识课件整理50谢谢！21、要知道对好事的称颂过于夸大，也会招来人们的反感轻蔑和嫉妒。——培根

22、业精于勤，荒于嬉；行成于思，毁于随。——韩愈

23、一切节省，归根到底都归结为时间的节省。——马克思

24、意志命运往往背道而驰，决心到最后会全部推倒。——