Taylor K W, McLoughlin M J, Aldridge H E
Cathet Cardiovasc Diagn. 1977;3(4):367-74. doi: 10.1002/ccd.1810030406.
In coronary arteriography cranial and caudal angulations are combined with oblique angulations to obtain additional views. The angulations are obtained with a variety of equipment rotating about different axes. The planes and axes in and about which the patient and equipment rotate are defined and the equipment is grouped according to the axes about which it rotates. It is shown that a simple definition of the angulation of a projection may be obtained using concepts and terminology consistent with current radiological practice. One group of equipment then gives directly from the rotation of its component parts the angles specifying the projection. For other equipment, the angles specifying the projection are calculated and tabulated for angles of rotation of the equipment from 0 to 90 degrees. Thus, equivalent projections for the different equipment may be found and compared.
在冠状动脉造影中，头侧和尾侧成角与斜向成角相结合以获得额外的视图。这些成角是通过围绕不同轴旋转的各种设备获得的。定义了患者和设备在其中及围绕其旋转的平面和轴，并根据设备围绕其旋转的轴对设备进行分组。结果表明，使用与当前放射学实践一致的概念和术语，可以获得投影成角的简单定义。然后，一组设备通过其组成部件的旋转直接给出指定投影的角度。对于其他设备，计算指定投影的角度，并针对设备从0到90度的旋转角度制成表格。因此，可以找到并比较不同设备的等效投影。
