title: Influence of some instrumental parameters on the determination of quantitative data using the PET scanner PC4096-15WB.
abstract: In order to evaluate the influence of physical and instrumental limitations of the PET technique on metabolic data, various parameters have been tested. The measurements were done with a whole body PET scanner PC4096-15WB. The dependence on the transaxial resolution of reconstruction filter cut off frequency alpha c was investigated. The high resolution (4.8 mm at r = 0 in the field of view) and the low scatter fraction (less than 5%) of this system yields a higher grey/white matter ratio (3.8:1) than that found with older scanners (2:1). The use of a rotating pin source allows transmission scans to be performed after tracer administration with an error of less than 5%.
authors.affiliation: Institute of Medicine, Nuclear Research Center Jülich, Federal Republic of Germany.
authors.forename: E
authors.initials: E
authors.lastname: Rota Kops
authors.forename: H
authors.initials: H
authors.lastname: Herzog
authors.forename: A
authors.initials: A
authors.lastname: Schmid
authors.forename: A
authors.initials: A
authors.lastname: Winkens
authors.forename: R
authors.initials: R
authors.lastname: Dick
authors.forename: L E
authors.initials: LE
authors.lastname: Feinendegen
mesh_terms: D007091:Image Processing, Computer-Assisted; D008961:Models, Structural; D014055:Tomography, Emission-Computed / Q000295:instrumentation*