将左胸廓内动脉移植物 left internal mammary artery graft
对左胸廓内动脉行选择性动脉造影术，显示了一根分支血管的假动脉瘤形成。
Selective arteriography of the right internal thoracic artery revealed a feeder vessel for the pseudoaneurysm.
估计此假动脉瘤是关闭胸腔的缝线对左胸廓内动脉的分支造成了损伤而形成。
The pseudoaneurysm was suspected to have resulted from trauma to a branch of the right internal thoracic artery from one of the sternal wires used for sternotomy closure.
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