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Modern Brachytherapy Treatment Planning
Catheters/Applicators (Sources) Localisation
In general there are exist two methods for the Localisation of the
sources/ possible source dwell positions.
Source Path Method
Here the “
finger-print
” of the individual implanted catheters/
applicators on the acquired images is utilized (interstitial
implants, endoluminal and simple endocavitary applicators)
3D-Applicator Model Method
Here the 3D Applicator geometry (rigid) is preexisting and
stored as a “3D-Object” including all required information for
generation of sources/source dwell positions (source paths,
all possible source dwell positions and channel length for each
path, …)
Plastic - CT
Metallic - CT
Metallic – U/S
Breast
Gyn
Prost te