Inventors:
Peter Dure-Smith - Philadelphia PA
Roger L. Schnaare - Philadelphia PA
International Classification:
A61K 2902
Abstract:
An X-ray contrast method containing as the essential radioopaque ingredient finely divided tantalum metal dispersed in a liquid vehicle having critical viscosity and flow properties. The metal has an average particle diameter in the range from about 0. 5 to about 30 microns, and preferably in the range from about 1 to about 5 microns in a physiologically and pharmaceutically acceptable amount for use in obtaining X-ray films of sufficient clarity and detail for use in bronchography.