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6. Image contouring

• Existing automatic contouring algorithms:

-

Thresholding methods

-

Gradient based algorithms

-

Methods including PVE-correction and deconvolution

-

Statistical clustering

• Chosen method has to be validated using PET phantom

measurements.

26 | D. Thorwarth | 09/2015

ESTRO teaching course on advanced imaging techniques

40% SUV

max

(47 ml)

SUV=2.5 (105 ml)

Adaptive thresholding

(77ml)

Thorwarth

et al. Nuklearmedizin

2012 (courtesy A. Schaefer)