Proto A V, Chaliff M I
Radiology. 1986 Nov;161(2):429-32. doi: 10.1148/radiology.161.2.3763914.
Of 423 posteroanterior chest radiographs in patients aged 21-66 years, 12.8% showed a homogeneous oval opacity with unsharp margins at the right apex and 16.8% at the left apex. Anatomy of the vessel, observations in patients with pneumothorax or atherosclerotic calcification, and fluoroscopic and computed tomographic evidence lead to the conclusion that the apical opacity is produced by the subclavian artery.
在423例年龄在21至66岁患者的后前位胸部X光片中，12.8%的片子显示右肺尖有边缘模糊的均匀椭圆形不透光区，16.8%的片子显示左肺尖有此现象。血管解剖、气胸或动脉粥样硬化钙化患者的观察结果以及荧光镜检查和计算机断层扫描证据得出结论，肺尖不透光区是由锁骨下动脉产生的。
