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Vermess Michael; Chatterji, Dulal C.; Doppman, John L.; Grimes, George; Adamson, Richard H.
Journal of Computer Assisted Tomography: February 1979
Original Article: PDF Only

A lipoid based contrast material containing 53% of ethiodized oil in emulsion form was developed for computed tomography (CT) of the liver and spleen and tested in rabbits and monkeys. An intravenous dose of 0.2 ml/kg selectively opacified the liver and spleen, resulting in an average increase of 23 EMI units (500 scale) in the attenuation of the liver and a higher increase in the attenuation of the spleen. When injected into rhesus monkeys with carcinogen induced hepatomas there was a significant improvement in the visualization of the tumor, and small lesions, undetectable on the preliminary CT scan, became visible. Toxicity studies are in progress.

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