研究人员注意到：负荷总分和左心室增大程度可以提供更加准确的预后信息，但是射血分数对本模型没有贡献。
Summed stress scores and left ventricular enlargement provided incremental prognostic information, the researchers note, but including left ventricular ejection fraction did not improve the model.
目的研究冠状动脉旁路移植术(CABG)前左心室射血分数(EF)和左心室缩短分数(FS)对术后室性心律失常(VA)预测的准确性。
Objective To evaluate the accuracy of left ventricular ejection fraction (ef) and fractional shortening (FS) for predicting ventricular arrhythmias (va) after coronary artery bypass grafting (CABG).
初期的筛分终点是12个月的左心室射血分数和左心室收缩末期容积。
The primary end points were the left ventricular ejection fraction and left ventricular end-systolic volume at 12 months.
超声心动图(ucg)和MRI检测左心室射血分数(LVEF)和室壁增厚率(WT)，评价左心室收缩功能。
UCG and MRI were used and left ventricular ejection fraction (LVEF) and systolic wall thickening (WT) were examined to assess the left ventricular systolic function.
对照组与治疗组同期对应比较，左心室形态逐渐扩大，6个月末最明显，且差异有显著性意义。 同时左心室射血分数同组和两组间对应比较，均有明显改善（P<0.05，P<0.01）。
Results The changes of left ventricular shape and geometry in control group were more obvious than those in treatment group from early phase to 6 months(P<0.05, P<0.01).
对照组与治疗组同期对应比较，左心室形态逐渐扩大，6个月末最明显，且差异有显著性意义。 同时左心室射血分数同组和两组间对应比较，均有明显改善（P<0.05，P<0.01）。
Results The changes of left ventricular shape and geometry in control group were more obvious than those in treatment group from early phase to 6 months(P<0.05, P<0.01).
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