Methods: In15 patients who underwent pneumonectomy and suried for more than5 years, we ealuated by dynamic magnetic resonance imaging the function of the R and L and the position of the heart within the thorax.

• 方法：我们评价了15个接受了肺切除并且存活了5年以上的患者其动态的很磁共振成像观察R和L的功能以及心脏在胸腔内的位置。