J Wiskin1,2 *, D Borup1 , M Andre3 , H Ojeda-Fournier4 , L Olson4 , D Robinson1 , S Johnson1 , (1) TechniScan, Inc., Salt Lake City, Utah, (2) Dept. Bioeng., Univ. of Utah, Salt Lake City, Utah, (3) VA Medical Center, La Jolla, CA, (4) University of California, San Diego, La Jolla, CA,