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Radiology, Vol 129, 363-370, Copyright © 1978 by Radiological Society of North America
ARTICLES |
MJ Lipton, JA Abbott, JC Kosek, T Hayashi, FC Lee and E Bishop
The relationship of angiographic injections to cardiovascular trauma was determined. The aorta of dogs was studied by a mathematic model that (a) defines the kinetic energy of contrast-media jets emanating from the exit holes of catheters and (b) enables precise correlation of energy levels to potential trauma. A universal curve independent of the Reynolds number of the jet readily determines how far the jet penetrates intravascular blood. A traumatic histopathologic spectrum was found for those injections predicted by the model to be traumatic. The curve enables the angiographer to calculate the safe operating range of any catheter.
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