Spleen scanning in humans with Tc-99m-labeled erythrocytes: concise communication.

Technetium-99m-labeled heat-damaged erythrocytes were evaluated as a spleen imaging agent in 14 patients. Spleen-to-liver deposition ratios were increased to such an extent that the liver was rarely visualized, and interference from the hepatic left lobe of the liver was eliminated. Information obtained was accurate and diagnostically adequate in various splenic involvements. This tracer appears to be one of the better spleen imaging agents presently available.