Seeds and Markers for Use in Imaging

Abstract

1 . (canceled) 2 . A contrast marker, the marker comprising: a casing; and a contrast agent comprising at least one transition metal complex solution disposed within the casing, wherein the transition metal complex includes [(CoCl 2 ) n (C 2 H 5 NO 2 ) 1-n ] (where n=0.5-0.95). 3 . The contrast marker of claim 2