title: PET diagnostic accuracy: improvement with in-line PET-CT system: initial results.
abstract: 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.
authors.affiliation: Department of Medical Radiology, Division of Nuclear Medicine, University Hospital Zurich, Rämistrasse 100, 8091 Zurich, Switzerland. thomas.hany@dmr.usz.ch
authors.forename: Thomas F
authors.initials: TF
authors.lastname: Hany
authors.forename: Hans C
authors.initials: HC
authors.lastname: Steinert
authors.forename: Gerhard W
authors.initials: GW
authors.lastname: Goerres
authors.forename: Alfred
authors.initials: A
authors.lastname: Buck
authors.forename: Gustav K
authors.initials: GK
authors.lastname: von Schulthess
mesh_terms: D000008:Abdominal Neoplasms / Q000473:pathology; D000328:Adult; D000368:Aged; D002289:Carcinoma, Non-Small-Cell Lung / Q000473:pathology; D018288:Carcinoma, Small Cell / Q000473:pathology; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation*; D008175:Lung Neoplasms / Q000473:pathology; D008297:Male; D008838:Microcomputers; D008875:Middle Aged; D009367:Neoplasm Staging; D009369:Neoplasms / Q000473:pathology*; D010039:Otorhinolaryngologic Neoplasms / Q000473:pathology; D012680:Sensitivity and Specificity; D012984:Software; D014055:Tomography, Emission-Computed / Q000295:instrumentation*; D036542:Tomography, Spiral Computed / Q000295:instrumentation*
chemical_list: D019788:Fluorodeoxyglucose F18