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Prior Page Principles of Coronary Angiography 1 Next Page
  The patient lays on the cardiac catheterization table with the image intensifier and camera above the chest and the x-ray source tube below the table, as shown below. The camera can be made to pivot towards the left and right of the patient. This is known as the left anterior oblique (LAO) and right anterior oblique (RAO) views, respectively.
The camera is also able to pivot towards (cranial) and away (caudal) from the patients head. All this is achieved with the help of a control handle that is situated near the hand of the operator.
  Controls are also provided to raise and lower the table, raise and lower the camera, change the magnification, increase and decrease the size of the shutters, etc.

  The camera takes cineangiographic (cine) images on 35 mm x-ray film as the ostium of the coronary artery is engaged and contrast material is injected to opacify the artery. The online fluoro also allows visualization of the coronaries at any time without having to film it. Fluoroscopy is used to position the table and camera and during "test" injection of contrast.
  The two pedals that activate fluoroscopy (fluoro) and cine filming lie on the floor, near the operator's feet. each one is turned on by stepping on it. For example, the operator will first step on the fluoro pedal and confirm a position (during test injection of a small amount of contrast) and then switch over and press the cine pedal during the coronary hand injection.

Prior Page Principles of Coronary Angiography 1 Next Page
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