血管外肺水的定量评估,血管外肺水的定义,Pulmonaryedemaischaracterizedbyexcessaccumulationoffluidintheextravascularspaceofthelungs,namelyextravascularlungwater(EVLW).肺水肿是指过多的液体聚集于肺血管外，也就是血管外肺水,Thepathologicalconditionofpulmonaryedemadevelopsbytwomechanisms:Anincreaseinthepulmonarycapillaryhydrostaticpressure(hydrostaticorcardiogenicpulmonaryedema)andanincreaseinpulmonarycapillarypermeability(acuterespiratorydistresssyndromeARDS).However,itisoftendifficulttodiscriminatebetweenedemacausedbyincreasedhydrostaticpressu
