title: Gamma camera intrinsic uniformity in an unstable power supply environment.
abstract: The main objective of this work was to show that a gamma camera in a developing country could perform efficiently despite electricity outages using intrinsic flood uniformity tests as an index of performance. A total of 143 intrinsic uniformity test results for a new gamma camera in use in an environment with unstable power supply are presented. The integral uniformity for the central field of view (CFOV) was found to be between 3.43% and 1.49% (3.29% for acceptance test) while the integral uniformity for the useful field of view (UFOV) was between 4.51% and 1.9% (5.21% for acceptance test). The differential uniformity for the CFOV was between 1.99% and 1.04% (2.25% for acceptance test) while that of the UFOV was between 2.84% and 1.23% (2.63% for acceptance test). In conclusion, these results show that the uniformity of the gamma camera under this condition is within an acceptable range for both planar and SPET imaging.
authors.affiliation: Department of Nuclear Medicine, University College Hospital, University of Ibadan, P.M.B. 5116 Dugbe Post Office,Ibadan, South West Nigeria. jenyiejeh@yahoo.com
authors.forename: John E
authors.initials: JE
authors.lastname: Ejeh
authors.forename: Kayode S
authors.initials: KS
authors.lastname: Adedapo
authors.forename: Bidemi I
authors.initials: BI
authors.lastname: Akinlade
authors.forename: Bola O A
authors.initials: BO
authors.lastname: Osifo
mesh_terms: D011211:Electric Power Supplies; D015902:Gamma Cameras / Q000592:standards*; D011786:Quality Control; D015203:Reproducibility of Results