A Noninvasive Arterial Input Estimation Method for O-15 PET and Integrated PET/MR Scanning

The overall aim of this project is to implement a non-invasive method of measuring quantitative regional cerebral blood flow (rCBF) on the UAB hybrid PET/MRI scanner to allow conducting such \[O-15\]water based scans with relative ease and safety in a large variety of important clinical and research applications. Participants will undergo imaging at baseline and after administration of a drug to increase cerebral blood flow to evaluate perfusion estimates during low and high flow states. The goal of this study is to generate data that will justify eliminating invasive arterial sampling in most \[O-15\]water-based PET protocols.