Phantom material and method
AssigneeWisconsin Alumni Research Foundation
InventorsErnest L. Madsen, James A. Zagzebski, Richard A. Banjavic, Michele M. Burlew
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Abstract
Tissue mimicking material for use in ultrasound phantoms formulated as a uniform suspension of solid particles of graphite, talc, pumice, polyethylene microspheres, or liquid particles of vegetable oils, kerosine, or combinations thereof described as scatterers in a congealed gelatin-water-alcohol-preservative matrix; containing detergents to create the liquid particles.
Claims26
Tissue mimicking material comprised of a scatterer in finely divided form uniformly dispersed throughout a congealed gel matrix, having in the absence of particulate scatterers a speed of sound within the range of 1400-1650 m/s, and formed of a gel forming material, water and an organic hydroxy compound soluble in the water, with or without a preservative.
Tissue mimicking material comprising an oil and gelatin mixture, a solution of water and an alcohol soluble in the water and a preservative, with a detergent present in an amount to form a stable oil in water emulsion upon vigorous agitation of the mixture which congeals into a stable gel.
Tissue mimicking material comprised of a scatterer in finely divided form uniformly dispersed throughout a congealed gel matrix, having in the absence of particulate scatterers a speed of sound within the range of 1400-1650 m/s, and formed of a gel forming material, water and an organic hydroxy compound soluble in the water, with or without a preservative, in which the gel forming material is gelatin, in which the hydroxy compound is n-propanol present in an amount within the range of 5-25% by volume of the gel, and in which the scatterer is graphite present in the gel in an amount within the range of 0.01-0.2 gm/cm.sup.3.
Dependencies are inferred from the claim text.