QT间期离散度；
This inter-lead difference was called QT interval dispersion (QTD) and was defined as QT maximum minus QT minimum measured from 12 leads.
这就是QT间期离散度的概念，其定义为标准12导联同步心电图中最大QT间期和最小QT间期之差。
Objective To study the lead selection of QT interval measurment in the patients with acute myocardial infarction and to examine the relation of QT dispersion with VT/VF.
目的探讨急性心肌梗死测定最大QT间期的导联选择及分析心肌梗死急性期QT离散度与恶性以律失常的相关性。
Objective The significance of prognosis judging with the Dispersion Degree of QT Interval was been studied among the potients who suffered form the acute myocardial infarction.
目的：探讨急性心肌梗塞时，QT间期离散度对其预后判定的意义。
Objective The significance of prognosis judging with the Dispersion Degree of QT Interval was been studied among the potients who suffered form the acute myocardial infarction.
目的：探讨急性心肌梗塞时，QT间期离散度对其预后判定的意义。
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