0922国际期刊速递丨今日热点应激性

TODAY今日发布EuropeanHeartJournal-CardiovascularImagingOct01,:20(10)今日发布04篇（共计20篇）PediatricCardiologyEarlyRecent,Sept21,今日发布01篇JThrombThrombolysisEarlyRecent,Sept21,今日发布01篇JIntervCardElectrophysiolOct01,:56(1)今日发布02篇RECOMMEND推荐阅读01自然T1标测在应激性心肌病心肌损害检测中的临床意义EuropeanHeartJournal-CardiovascularImagingYukioAikawa,TeruoNoguchi,etc.19小时前等78用户推荐阅读本文ToinvestigatetheclinicalimpactofT1mappingfordetectingmyocardialimpairmentintakotsubocardiomyopathy(TTC)overtime.探讨T1标测技术在应激性心肌病（TTC）心肌损害检测中的临床应用价值。In23patientswiththeapicalballooningtypeofTTC,thefollowing3Tmagneticresonance(MR)examinationswereperformedatbaselineand3monthsafterTTConset:T2-weightedimaging,T2mapping,nativeT1mapping,extracellularvolumefraction(ECV),andlategadoliniumenhancement.EighthealthycontrolsunderwentthesameMRexaminations.Serialechocardiographywasperformeddailyfor≥7daysandmonthlyuntil3monthsafteronset.ThemediantimefromonsettoMRexaminationwas7days.Duringtheacutephase,patientshad,relativetocontrols,highernativeT1(±vs.±90ms,P0.),ECV(35±5%vs.29±4%,P0.),andT2(90±34vs.68±12ms,P0.)fortheentireheart.Per-regionanalysisshowedthathighernativeT1andT2inthebasalregionwerecorrelatedwithlowerleftventricularejectionfraction(r=?0.,P=0.andr=?0.,P=0.,respectively).ReceiveroperatorcharacteristicanalysisshowedthattheareaunderthecurvefornativeT1(0.96)wassignificantlylargerthanthatforT2(0.86;P=0.)butsimilartothatforECV(0.92;P=0.).At3-monthfollow-up,nativeT1,ECV,andT2intheapicalregionremainedsignificantlyelevatedinallpatientswithTTC.Thenumberofleftventricular(LV)segmentswithelevatednativeT1(cut-offvaluems)wassignificantlycorrelatedwithprolongedLVwallmotionrecoverytime(r=0.,P=0.).在23例心尖气球样ttc患者中，在基线和TTC发病3个月后进行以下3t磁共振（MR）检查：t2加权成像、T2成像、自然T1成像、细胞外体积分数（ECV）和晚期钆增强。8名健康对照者接受了相同的mr检查。连续超声心动图检查7天和每月，直到发病后3个月。发病至MR检查的中位时间为7天。在急性期，与对照组相比，患者整个心脏的自然T1（±vs.±90ms，P0.）、ECV（35±5%vs.29±4%，P0.）和T2（90±34vs.68±12ms，P0.）。逐区分析显示，基底区自然T1和T2增高与左室射血分数降低相关（分别为r=-0.，P=0.和r=-0.，P=0.）。受试者操作特性分析表明，原生T1（0.96）曲线下面积显著大于T2（0.86；P＝0.），但与ECV（0.92；P＝0.）相似。在3个月的随访中，所有ttc患者根尖区的自然T1、ECV和T2均显著升高。左心室（LV）节段具有升高的天然T1（截止值毫秒）与延长的LV壁运动恢复时间显著相关（r＝0.，P＝0.）。CharacterizationofmyocardiumwithnativeT1mappingisapromisingmethodforpredictingLVwallmotionrestorationinTTC.心肌的自然T1定位是预测TTC左室壁运动恢复的一种有前途的方法。扫描