title: The comparison of bone scan and MRI in osteoporotic compression fractures.
abstract: METHODS
  Retrospective study.
  
  
  OBJECTIVE
  To estimate the usefulness of bone scan and magnetic resonance imaging (MRI) for the diagnosis of new fracture in osteoporotic vertebral fractures.
  
  
  BACKGROUND
  The diagnosis of new fractrure in osteoporotic vertebral fractures requires simple X-ray and supplementary studies.
  
  
  METHODS
  We analyzed 87 vertebrae in 44 patients, who diagnosed with osteoporotic vertebral fractures using bone scan and MRI within 2 months interval between August 2001 and July 2008. We compared hot uptakes in bone scan with MRI findings such as new fractures, old fractures and degenerative lesions.
  
  
  RESULTS
  Hot uptakes in bone scan was matched to 48 new fractures, 26 old fractures and 13 degenerative lesions in MRI findings. It was 55% of concordance between hot uptakes in bone scan and new fractures in MRI. The rate of new vertebral fractures confirmed by MRI according to 1 level hot uptakes in bone scan was 96%, 2 levels was 50% and 3 more levels was 36%.
  
  
  CONCLUSIONS
  The diagnosis of new fracture in osteoporotic vertebral fractures requires simple X-ray and supplementary studies such as bone scan and MRI. We recommend more careful interpretation in multiple osteoporotic vertebral fracture patients about hot uptake lesions of bone scan.
authors.affiliation: Department of Orthopedic Surgery, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea.
authors.forename: Jung-Hoon
authors.initials: JH
authors.lastname: Kim
authors.forename: Jong-In
authors.initials: JI
authors.lastname: Kim
authors.forename: Bo-Hoon
authors.initials: BH
authors.lastname: Jang
authors.forename: Jung-Gook
authors.initials: JG
authors.lastname: Seo
authors.forename: Jin-Hwan
authors.initials: JH
authors.lastname: Kim