[1] NIH, Dept Radiol & Imaging Sci, Ctr Clin, Bethesda, MD 20892 USA
[2] NIH, Natl Inst Dent & Craniofacial Res, Skeletal Disorders & Mineral Homeostasis Sect, Bethesda, MD 20892 USA
[3] Univ Missouri, Sch Med, 2411 Holmes St, Kansas City, MO 64108 USA
[4] Univ Maryland, Dept Comput Sci & Elect Engn, Baltimore, MD USA
[5] Univ Miami, Inst Data Sci, Dept Diagnost Radiol & Nucl Med, Sch Med, Miami, FL USA
[6] NIH, Natl Inst Arthrit & Musculoskeletal & Skin Dis, Ctr Dr, 10 Ctr Dr,Bldg 10,Room 12S-253, Bethesda, MD 20892 USA
[7] Odense Univ Hosp, Dept Nucl Med, DK-5000 Odense, Denmark
[8] Univ Southern Denmark, Dept Clin Res, Odense, Denmark
[9] Univ Penn, Perelman Sch Med, Dept Radiol, Philadelphia, PA USA
[10] Sahlgrens Univ Hosp, Dept Clin Physiol, Gothenburg, Sweden
[11] SU Sahlgrenska, Dept Mol & Clin Med, Inst Med, S-41345 Gothenburg, Sweden