Altropane Dose for Imaging Patients With Suspected Parkinson's Disease

Each participant received a single intravenous (IV) administration of 5 millicuries (mCi) (185 megabecquerels \[MBq\]) of Altropane (123I) Injection on Day 1. Altropane SPECT images were acquired for 30 minutes starting 15 to 20 minutes after administration with Altropane. These images were visually interpreted by 5 expert independent blinded readers.