title: Impact of positron emission tomography/computed tomography and positron emission tomography (PET) alone on expected management of patients with cancer: initial results from the National Oncologic PET Registry.
abstract: OBJECTIVE
  Under Medicare's Coverage with Evidence Development policy, positron emission tomography (PET)/computed tomography (CT) and PET became covered services for previously noncovered cancer indications if prospective registry data were collected. The National Oncologic PET Registry (NOPR) was developed to meet these coverage requirements and to assess how PET affects care decisions.
  
  
  METHODS
  The NOPR collected questionnaire data from referring physicians on intended patient management before and after PET. After 1 year, the cohort included data from 22,975 studies (83.7% PET/CT) from 1,178 centers. The numbers of scans performed for diagnosis of suspected cancer (or unknown primary cancer), initial cancer staging, restaging, and suspected cancer recurrence were approximately equal. Prostatic, pancreatic and ovarian cancers represented approximately 30% of cases.
  
  
  RESULTS
  If PET data were not available, the most common pre-PET plan would have been other imaging. In these patients, the post-PET strategies changed to watching in 37% and treatment in 48%. In patients with planned biopsy before PET, biopsy was avoided in approximately 70%. If the pre-PET strategy was treatment, the post-PET strategy involved a major change in type in 8.7% and goal in 5.6%. When intended management was classified as either treatment or nontreatment, the post-PET plan was three-fold more likely to lead to treatment than nontreatment (28.3% v 8.2%; odds ratio = 3.4; 95% CI, 3.2 to 3.6). Overall, physicians changed their intended management in 36.5% (95% CI, 35.9 to 37.2) of cases after PET.
  
  
  CONCLUSIONS
  This large, prospective, nationally representative registry of elderly cancer patients found that physicians often change their intended management on the basis of PET scan results across the full spectrum of its potential uses.
authors: Department of Internal Medicine and the Massey Cancer Center, Virginia Commonwealth University, 1101 E Marshall St, Room 7013, Richmond, VA 23298-0170, USA. Hillner@vcu.edu
authors: Bruce E
authors: BE
authors: Hillner
authors: Barry A
authors: BA
authors: Siegel
authors: Dawei
authors: D
authors: Liu
authors: Anthony F
authors: AF
authors: Shields
authors: Ilana F
authors: IF
authors: Gareen
authors: Lucy
authors: L
authors: Hanna
authors: Sharon Hartson
authors: SH
authors: Stine
authors: R Edward
authors: RE
authors: Coleman
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001706:Biopsy; D014487:Centers for Medicare and Medicaid Services, U.S.; D005260:Female; D006801:Humans; D008297:Male; D006278:Medicare; D008875:Middle Aged; D009367:Neoplasm Staging; D009369:Neoplasms / Q000000981:diagnostic imaging* / Q000628:therapy; D016017:Odds Ratio; D010043:Outcome and Process Assessment, Health Care; D010166:Palliative Care; D010347:Patient Care Planning; D018579:Patient Selection; D049268:Positron-Emission Tomography; D011446:Prospective Studies; D012042:Registries; D011795:Surveys and Questionnaires; D014057:Tomography, X-Ray Computed; D014481:United States