title: Whole-body diffusion-weighted MRI for staging lymphoma at 3.0T: comparative study with MR imaging at 1.5T.
abstract: OBJECTIVE
  To compare 3T and 1.5T Whole Body Diffusion Weighted MRI (WB-DW-MRI) in patients at initial diagnosis of lymphoma.
  
  
  METHODS
  Twenty-three patients were included. We performed a 3.0T and 1.5T WB-DW-MRI with 18 F-Fluoride Positron Emission Tomography Computed Tomography (PET-CT) as the reference standard. Image quality, lymph node, organ involvement, and Ann Arbor staging were evaluated.
  
  
  RESULTS
  Major artifacts were found in 2/23 patients at 3.0T. Concordance was excellent between 1.5T and 3T for nodal (Intraclass Correlation Coefficient (CCI)=0.995), organ involvement (CCI=0.990), and Ann Arbor stages (k=0.967).
  
  
  CONCLUSIONS
  A 3T WB-DW-MRI yields accurate assessment and staging of lymphoma comparable to 1.5T.
authors.affiliation: Pôle d'imagerie, Hôpital Robert Debré, Service de radiologie, CHU de Reims. Electronic address: azben91@yahoo.fr.
authors.forename: Benaissa
authors.initials: B
authors.lastname: Azzedine
authors.affiliation: Service de médecine nucléaire, Institut Jean Godinot, CHU de Reims.
authors.forename: Moussa-Bouharati
authors.initials: MB
authors.lastname: Kahina
authors.affiliation: Service de médecine nucléaire, Institut Jean Godinot, CHU de Reims.
authors.forename: Papathanassiou
authors.initials: P
authors.lastname: Dimitri
authors.affiliation: Pôle d'imagerie, Hôpital Robert Debré, Service de radiologie, CHU de Reims.
authors.forename: Portefaix
authors.initials: P
authors.lastname: Christophe
authors.affiliation: Service d'hématologie, Hôpital Robert Debré, CHU de Reims.
authors.forename: Delmer
authors.initials: D
authors.lastname: Alain
authors.affiliation: Pôle d'imagerie, Hôpital Robert Debré, Service de radiologie, CHU de Reims.
authors.forename: Marcus
authors.initials: M
authors.lastname: Claude
mesh_terms: D000328:Adult; D000368:Aged; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods*; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008198:Lymph Nodes / Q000473:pathology*; D008223:Lymphoma / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011446:Prospective Studies; D019275:Radiopharmaceuticals; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods; D051598:Whole Body Imaging / Q000379:methods*; D055815:Young Adult
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18
keywords: 1.5T DW WB MRI; 3.0T; Ann Arbor staging; Artifacts; Lymphomas