TABLE 1
Methods
Method
Prefilter
Reconstruction filter
Scatter correction
Attenuation correction
Chang
Butterworth
Ramp
None
Chang (0.070 cm
−1
)
TEW + Chang
Butterworth
Ramp
TEW
Chang (0.146 cm
−1
)
TEW + CT
Butterworth
Ramp
TEW
CT map