| http://www.w3.org/ns/prov#value | - In preferred embodiments, it is contemplated that the surface or surfaces of a catheter, implant, or a portion thereof, such as a screw, will be coated with a metallotexaphyrin complexed to a paramagnetic metal ion, such as Cu(III), Ni(III), Co(II), Co(III), Fe(II) or Fe(III), and most preferably, Gd(III), prior to implantation.
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