From left to right: axial, sagittal, and coronal views of the CT (top row), SPECT (middle row), and fused images (bottom row). The lateral BB and activated marker locations are identified on the CT and SPECT coronal views with arrows.
Fiducial registration error for the middle anterior marker (FRE j = 5) as a function of the number of markers used in the registration. Starting at N used = 4, FRE j = 5 does not deviate by more than 1 mm from the case using all markers.?vsp -6pt?>
Fiducial registration error FRE i for each patient for the optimum number of markers (four), in mm. The next to last row shows the overall FRE. The deformation index (DI), measured from all marker pairs distances, is also given. Additionally, FRE and DI for the phantom study are given.
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