Investigation of Attenuation Correction for Small-Animal Single Photon Emission Computed Tomography
Figure 5
The images of the four-quarter phantom acquired after corrections. (a) Scatter correction, (b) Chang’s method in combination with scatter correction, (c) CTAC in combination with scatter correction, (d) CTIACR in combination with scatter correction, and (e) CTMAC in combination with scatter correction. The line profiles through the center of the four-quarter phantom are shown, and the two purple lines are the true activity concentrations obtained from measurements.
