PHILADELPHIA--(BUSINESS WIRE)--Avid Radiopharmaceuticals, Inc. (Avid), a product-focused molecular imaging company, and Bayer Schering Pharma, a world leader in the diagnostic imaging pharmaceutical field, today announced that Bayer Schering Pharma has exercised its right to license Avid’s 18F-AV1/ZK compound, a molecular imaging agent that targets amyloid plaques in the brain. When used with positron emission tomography (PET) imaging, the AV1/ZK compound may enable earlier and more accurate diagnosis of Alzheimer’s Disease (AD), a disease that currently affects an estimated 5 million Americans and is expected to potentially affect up to 16 million Americans by the year 2050 (www.alz.org).