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Summary: Reconstruction
ESTRO Teaching Course Advanced Imaging: PET – Reconstruction, Contouring
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Today, iterative reconstruction (IR) algorithms are
standard on all PET/CT systems
Superior image quality when compared to filtered back
projection
Iteratively reconstructed images are characterized by
●
number of iterations and subsets
●
matrix and voxel size
●
image zoom
●
image smoothing, smoothing filter size or kernel (FWHM).
IR methods employing a sufficient number of iterations
and subsets to ensure sufficient amount of convergence
are preferred.
Reconstructed with and without AC recommended to
allow inspection of AC artifacts.