1. Urologic Oncology Branch, National Cancer Institute, National Institutes of Health and Center for Interventional Oncology, Bethesda, Maryland
2. Philips Research North America, Briarcliff Manor, New York
3. Department of Radiology and Imaging Sciences, National Institutes of Health Clinical Center, Bethesda, Maryland
4. Molecular Imaging Program, National Cancer Institute, National Institutes of Health and Center for Interventional Oncology, Bethesda, Maryland
5. Philips Healthcare, Toronto, Ontario, Canada