title: [PET/CT in lymphoma patients].
abstract: OBJECTIVE
  First results of PET/CT in Hodgkin's disease (HD) and aggressive non-Hodgkin's lymphoma (NHL) are reported.
  
  
  METHODS
  From March 2001 to August 2004 822 PET/CT were performed at our clinic in lymphoma patients for primary staging, restaging after therapy, and diagnosis of recurrence. For coregistration non contrast-enhanced low-dose CT were used.
  
  
  RESULTS
  Due to the exact anatomic localization of (18)F-FDG accumulating lesions equivocal or false positive PET findings are avoided. In comparison to contrast enhanced CT, PET/CT has a higher sensitivity and specificity in patients with HD and aggressive NHL. Integration of PET/CT in treatment planning of radiation therapy optimizes the field volume.
  
  
  CONCLUSIONS
  Even in the initial phase of clinical evaluation, PET/CT has proven useful in staging and restaging of lymphoma. The exact anatomic localization of the PET findings is essential for a precise report, for treatment planning of radiation therapy, and for planning surgical biopsy.
authors.affiliation: Klinik und Poliklinik für Nuklearmedizin, Universitätsspital Zürich, Schweiz. hans.steinert@usz.ch
authors.forename: H C
authors.initials: HC
authors.lastname: Steinert
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016477:Artifacts; D002648:Child; D002675:Child, Preschool; D004867:Equipment Design; D005260:Female; D019788:Fluorodeoxyglucose F18; D005500:Follow-Up Studies; D006689:Hodgkin Disease / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy; D006801:Humans; D007089:Image Enhancement / Q000295:instrumentation*; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation*; D008223:Lymphoma / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis / Q000473:pathology / Q000628:therapy; D009367:Neoplasm Staging; D049268:Positron-Emission Tomography / Q000295:instrumentation*; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*; D016896:Treatment Outcome
chemical_list: D019788:Fluorodeoxyglucose F18