ME = mid-esophageal(中食道)
TG = transgastric(經(jīng)胃)
UE = upper esophageal(上食道)
4C = four-chamber(四腔心)
2C = two-chamber(二腔心)
LAX = long axis(長(zhǎng)軸)
SAX = short axis(短軸)
LA/LAA = left atrium/left atrial appendage(左心房/左心耳)