左心室增大，后前位，左心室段延长，心尖向下向左延伸。
结果：X线平片显示肺血减少，右心房、左心室增大；
Result:Chest X-ray showed pulmonary oligemia, right atrial and left ventricular enlargement.
图3病例1。四腔心切面显示心室大小不对称，表现为右心室缩小或左心室增大。
Figure 3. Case 1. Four-chamber view showing asymmetry of ventricular size that could represent either a small right ventricle or a dilated left ventricle.
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.
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