[1] Univ Michigan, Med Ctr, Dept Nucl Med, Ann Arbor, MI USA
[2] Johns Hopkins Univ, Outpatient Ctr, Baltimore, MD USA
[3] Emory Univ, Sch Med, Dept Radiol & Imaging Sci, Atlanta, GA USA
[4] Eka Med Ctr, Jakarta, Indonesia
[5] UNC Dept Radiol, Chapel Hill, NC USA
[6] Univ Calif San Francisco, Dept Radiol & Biomed Imaging, Neuroradiol Sect, San Francisco, CA USA
[7] Duke Univ, Med Ctr, Dept Radiol, Div Neuroradiol, Durham, NC 27710 USA
[8] Johns Hopkins Univ, Sch Med, Russell H Morgan Dept Radiol & Radiol Sci, Baltimore, MD USA
[9] Johns Hopkins Med Inst, Russell H Morgan Dept Radiol & Radiol Sci, 600 N Wolfe St, Baltimore, MD 21205 USA