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The video clip on the left was obtained in the cardiac cath lab as the left coronary angiogram was recorded in the LAO/caudal projection. The movie clip demonstrate both a "video" representation (coronary angios, as they appear on playback in the cath lab) and the "cine" or cineangiographic equivalent as seen on the developed film. The two views correspond to the negative and positive prints of photography film. You can toggle back and forth between the two views by clicking on the respective button. You can also click a button to see a labeled freeze frame of the coronary angiogram.

    In the LAO-Caudal view, the LAD begins close to the spine and then moves away from it and towards the left ventricular apex.
  The Cx, in the RAO-caudal view,  moves away from the LAD and towards the spine before giving off its branches that curve downwards and inferiorly running roughly parallel to the LAD.
   The picture on the right (above) shows the image intensifier/camera (II) assembly positioned in an LAO/Caudal projection. The picture on the left demonstrates the view of the heart as "seen" by the II in this projection.
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