Department Neurology, University of Michigan, Ann Arbor, MI 48109, USA.

Nuklearmedizinische Klinik u. Poliklinik, Klinikum rechts der Isar, Ismaninger Strasse 22, 81675 München, Germany. a.drzezga@lrz.tu-muenchen.de

University of Michigan Medical Center, University Hospital, Ann Arbor, Michigan 48109-0120, USA. ocameron@umich.edu

Departments of Radiology, University of Washington School of Medicine, Seattle, Washington 98195-6004, USA.

Geriatrics Research, Education Clinical Center, Ann Arbor VAMC and Department of Neurology, University of Michigan 41809-0585, USA. ralbin@umich.edu

Department of Neurosurgery, Hyogo Brain and Heart Center, Himeji, Japan. khosoda@venus.dti.ne.jp

Department of Nuclear Medicine, Klinikum rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675, München, Germany, a.drzezga@lrz.tu-muenchen.de

Department of Neurology and Department of Molecular and Integrative Physiology, University of Michigan, 48105, Ann Arbor, MI, USA

Department of Biotracer Medicine, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan. anoda@mprcf.or.jp

University of Washington, U.S.A.

Departments of Radiology and Bioengineering, University of Washington, 1959 North East Pacific Street, Seattle, WA 98195-6004, USA. minoshim@u.washington.edu

Department of Radiology, University of Washington.

Department of Nuclear Medicine, Mont-Godinne University Hospital, UCL-Université Catholique de Louvain, Yvoir, Belgium. thanh.tang@ulb.ac.be

Washington National Primate Research Center, University of Washington, Seattle, Washington 98195-7330, USA.

Department of Neurology, University of Washington School of Medicine, Seattle, Washington 98195, USA. aspence@u.washington.edu

Division of Nuclear Medicine, Department of Radiology, University of Washington, Seattle, Washington 98195-6113, USA.

Washington National Regional Primate Center, University of Washington, Seattle, WA, 98195-7330, USA.

Department of Radiology, Chiba University School of Medicine, Chiba, Japan. uchiday@faculty.chiba-u.jp

Division of Nuclear Medicine, University of Washington, Seattle, Washington, USA. sylvain.beaulieu@bigfoot.com

Department of Neurosurgery, Hyogo Emergency Medical Center, Kobe Red Cross Hospital, Kobe, Japan. khosoda@venus.dti.ne.jp

Department of Nuclear Medicine, Technische Universität, München, Munich, Germany. a.drzezga@lrz.tu-muenchen.de

Ishikawa Sunrise Industries Creation Organization, Kanazawa, Japan.

Division of Nuclear Medicine, Department of Radiology, University of Michigan, Ann Arbor, MI.

Department of Radiology and Nuclear Medicine, Hyogo Brain and Heart Center, 520 Saisho-Ko, Himeji, Hyogo, 670-0981, Japan, kishii@hbhc.jp.

Harborview Medical Center, Division of Nuclear Medicine, Department of Radiology, University of Washington School of Medicine, Seattle, WA, USA. lewis@u.washington.edu

Washington National Regional Primate Center, University of Washington, 1959 N.E. Pacific Street, BB201c, Box 357115, Seattle, WA 98195-7115, USA; Neuroscience Program, University of Michigan, Ann Arbor, MI 48109, USA.

Department of Bioengineering, University of Washington, Seattle 98195-7115, USA.

From the *Department of Radiology, Chiba University School of Medicine, Chiba, Japan; the †Department of Psychiatry, Chiba Aoba Municipal Hospital, Chiba, Japan; and the ‡Department of Radiology, University of Washington, Seattle, Washington.

Department of Neurosurgery, Hyogo Emergency Medical Center/Kobe Red Cross Hospital, Kobe, Japan. khosoda@venus.dti.ne.jp

Department of Radiology, University of Washington, Seattle, WA 98195-7115, USA. kannej@ccf.org

Department of Bioengineering, University of Washington, Box 355061, Seattle, WA 98195-5061, USA. ykim@u.washington.edu.

New York University School of Medicine, New York, New York.

Department of Psychiatry, University of Michigan Medical Center, c/o 1215 Southwood Ct, Ann Arbor, MI 48103-9735. ocameron@umich.edu.

Departments of Radiology and Bioengineering, University of Washington, 1959 N.E. Pacific Street, RR215, Box 357115, Seattle, WA, 98195-7115, USA, minoshim@u.washington.edu.

Cedars‐Sinai Medical Center, Los Angeles, California.

Departments of Radiology, Electrical Engineering, and Bioengineering, University of Washington Medical Center, Box 357115, 1959 NE Pacific St, Seattle, WA 98195. the 2006 RSNA Annual Meeting.

Fred Hutchinson Cancer Research Center, Seattle, WA, USA.

Department of Radiology, Sapporo Azabu Neurosurgical Hospital, East 1, North 40, Higashi-ku, Sapporo, 007-0840, Japan, ogu0709@sannet.ne.jp.

Department of Radiology, University of Washington, Seattle, Washington 98195-7115, USA.

Mail Code S-182-GRECC, Veterans Affairs Puget Sound Health Care System, 1660 S Columbian Way, Seattle, WA 98108, USA. eric.petrie@med.va.gov

Department of Radiology, University of Washington School of Medicine, Seattle, Washington.