Fig. 2
[123I]-Compound-1 rat brain SPECT evaluation. a CT image showing the brain (blue), non-brain (green) and background (yellow) VOIs. b Comparison of the intensity ratios between brain and non brain VOIs and brain and background VOIs of [123I]-Compound-1 (orange bars) and Na123I (white bars) intravenously injected animals. Results are expressed as mean ± SD (n = 3). c Sagittal rat head SPECT-CT fused images. SPECT-CT of an animal intravenously (iv.) injected with Na123I (left panel) and [123I]-Compound-1 (middle panel). Right panel shows a SPECT-CT of a rat intraperitoneally (ip.) injected with [123I]-Compound-1. Images were produced after averaging all the acquisition time frames. Images are displayed at different intensity scales