英文原文：
TheECGinFMmaydemonstratelowQRSvoltagebecauseofmyocardialedema;rarely,thereisevidenceforleftventricular(LV)hypertrophy.ElectrocardiographicsignsofaninjurycurrentwithST-segmentelevationsincontiguousleadsinasegmentalfashionarenotun