Skip to main content

Table 5 Impact of extra-brain activity: comparison of scatter and photopeak counts in human and phantom raw projections

From: [123I]FP-CIT ENC-DAT normal database: the impact of the reconstruction and quantification methods

Camera Phantom Human controls % difference
100*(controls-phantom)/average
SCl/PH
(%)
SCu/PH
(%)
SCl/PH
(%)
SCu/PH
(%)
% Diff for SCl % Diff for SCu
GE INFINIA2 70.1 53.9 72.9 56.9 3.9 5.4
GE INFINIA1 67.6 56.3 68.9 65.8 1.8 15.7
Philips IRIX (MEGP) 63.5 37.5 61.4 40.3 -3.4 7.2
GE MILLENNIUM 60.1 49.0 65.0 58.4 7.7 17.4
Siemens SYMBIA1 58.1 48.7 61.4 50.3 5.5 3.3
Siemens SYMBIA2 59.3 47.2 57.4 53.9 -3.2 13.2
Siemens ECAM1 59.2 46.1 57.1 49.4 -3.5 6.9
Siemens ECAM2 61.5 48.3 58.6 52.4 -4.9 8.2
Siemens ECAM3 61.6 48.7 63.1 55.1 2.3 12.2
Mediso NUCLINE 66.7 41.3 67.5 51.3 1.3 21.6
Trionix TRIAD1 58.9 41.5 62.0 52.0 5.2 22.6
Trionix TRIAD2 63.3 54.0 67.0 66.3 5.7 20.4
  1. Columns 2-5: total counts in SCl and SCu windows are expressed relatively to photopeak (% of PH) counts. In the last two columns (6, 7), the results for human and phantom data are compared in terms of their percentage difference