FIGURE 7.

Sample coronal and sagittal slices of attenuation maps (μ‐maps) (in 1/cm) obtained from different techniques; from left to right, each column includes attenuation images from computed tomography (CT), lutetium oxyorthosilicate (LSO) transmission events (Tx) (before injection [b.i.]), maximum likelihood estimation of attenuation and activity (MLAA) initiated with LSO‐Tx μ‐maps (b.i.), maximum likelihood estimation of activity and attenuation correction coefficients (MLACF) initiated with LSO‐Tx μ‐maps (b.i.), LSO‐Tx (after injection [a.i.]), MLAA initiated with LSO‐Tx μ‐maps (a.i.), and MLACF initiated with LSO‐Tx μ‐maps (a.i.)