PET diagnostic accuracy: improvement with in-line PET-CT system: initial results

Radiology. 2002 Nov;225(2):575-81. doi: 10.1148/radiol.2252011568.


The authors describe the initial application for tumor staging with an in-line system with a positron emission tomographic (PET) scanner and a multi-detector row helical computed tomographic (CT) scanner combined in one machine. Fifty-three patients underwent imaging with four CT tube currents and PET emission and transmission data acquisition. Stepwise analysis of coregistered images revealed a significant (P <.05, McNemar test) improvement in lesion classification between PET images alone and coregistered images from the PET-CT examination.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Abdominal Neoplasms / pathology
  • Adult
  • Aged
  • Carcinoma, Non-Small-Cell Lung / pathology
  • Carcinoma, Small Cell / pathology
  • Female
  • Fluorodeoxyglucose F18
  • Humans
  • Image Processing, Computer-Assisted / instrumentation*
  • Lung Neoplasms / pathology
  • Male
  • Microcomputers
  • Middle Aged
  • Neoplasm Staging
  • Neoplasms / pathology*
  • Otorhinolaryngologic Neoplasms / pathology
  • Sensitivity and Specificity
  • Software
  • Tomography, Emission-Computed / instrumentation*
  • Tomography, Spiral Computed / instrumentation*


  • Fluorodeoxyglucose F18