Research Article

Reduction of Collimator Correction Artefacts with Bayesian Reconstruction in Spect

Table 1

Contrast values of the 4 biggest spheres for the five different reconstruction methods: OSEM without collimator correction (OSEM NORR), OSEM reconstruction with collimator correction (OSEM RR), Median root prior (MRP), Quadratic smoothing prior (SMOOTH), and Bowsher prior (AMAP).

MethodOSEM NORROSEM RRMRPSMOOTHAMAP

Sphere 10.7410.8880.8710.8100.910
Sphere 20.6910.8490.8170.7760.898
Sphere 30.5950.8020.7680.7010.802
Sphere 40.5190.7820.7020.6200.742