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Table 1 Spatial resolutions measured on the reconstructed images obtained with the 85 keV ± 20% energy window and on the sum of the images obtained with each energy window (85 keV ± 20%, 154 keV ± 10%, 270 keV ± 10%)

From: 223Ra-dichloride therapy of bone metastasis: optimization of SPECT images for quantification

View FWHM (mm) without attenuation FWHM (mm) with attenuation
85 keV Sum Difference (%) 85 keV Sum Difference (%)
Axial 15.8 16.3 3.6 17.2 17.1 − 1.0
Sagittal 16.3 16.0 − 1.5 17.6 16.5 − 6.9