Introduction - Correction Techniques in Emission Tomography - page 6

Corrections
Corrections
FIGURE 1.3: General workflow of emission tomographic imaging. Correc-
tions have to be applied in order to get artifact-free and quantitative imaging
results.
partial volume correction and motion correction are some examples of those
post-processing procedures. Image quality may be significantly improved after
applying these corrections allowing quantitative image analysis.
It is not exaggerating to claim that emission tomographic imaging would
not be feasible without the use of corrections at the different stages of data
and image processing. There is a need for dedicated correction techniqes in
all imaging modalities. The better the corrections work, the better the image
quality and accuracy will be.
This topic gives a comprehensive overview of correction techniques at the
different levels of the data processing workflow. Since there is a large number
of correction methods available dedicated to individual scanner designs and
hardware, this topic is not meant to be complete in the description of all
available methods, but will demonstrate the basic principles as well as some
novel methods. A strong focus of this topic is on motion correction techniques
in PET imaging as this is a sophisticated and new approach towards high-
resolution, high-quality PET imaging which will most certainly have a great
impact on imaging analysis and image-based diagnostics.