Frederick P R, Fry W H, Russell J G, Marshall H W
Cathet Cardiovasc Diagn. 1977;3(3):305-11. doi: 10.1002/ccd.1810030314.
When good visualization of the left coronary artery and proximal branches is difficult, the longitudinally angulated projection has proved useful. An accessory for achieving this angulation with a conventional angiographic table and without sacrificing the advantages of video monitoring and the protection of lead vinyl shielding is described.
当左冠状动脉及其近端分支难以清晰显影时，纵向成角投照已被证明是有用的。本文介绍了一种辅助装置，可利用传统血管造影床实现这种成角，且不牺牲视频监测的优势和铅乙烯基屏蔽的防护作用。
