Prospective Evaluation of Strontium in Patients After CardioGen-82 PET MPI Scanning at Two Clinical Sites

This study is to be performed at two clinical sites where patients received CardioGen-82 during the time period January to June, 2011 and where patients were scanned chronologically near to the index patients (2 days before or after). Of these, it is planned that at least 30 patients will be entered in this trial. Index patient is the term applied to individuals who had radiation spectra indicative of Sr-82 and Sr-85 detected by hand-held survey meters.