The effectiveness of conformal radiotherapy can ultimately only be assessed by the use of clinical trials.
As large multicentre clinical trials become more widespread, methods of transferring patient and plan data between radiotherapy treatment planning systems become increasingly important.
In this paper, the general strategy for the transfer of data is discussed, and also illustrated with reference to two specific systems : TARGET 2 (GE Medical Systems) and VOXELPLAN (DKFZ-Heidelberg).
The transfer method involves using a computer program to translate the data formats used by each of the two systems for CT scans, patient outlines, plan information and block descriptions.
This paper does not address the question of transferring beam data between systems : beam data must first be entered separately into both machines.
The physical concepts encountered when transferring plans are described, with specific reference to the two planning systems used.
Differences in the strategies used by the two planning systems for definition of irregular field shapes are compared.
The dose calculations used by the two systems are also briefly evaluated.
Isodoses produced by VOXELPLAN around a circular target volume are found to be up to 3 mm different in location to those produced by TARGET 2, owing to the use of a smooth field shape contour as opposed to a stepped field shape which closely models the leaves of a multileaf collimator. (...)
Mots-clés Pascal : Radiothérapie, Transmission information, Equipement, Reproduction, Protocole thérapeutique, Compatibilité, Transfert, Technique, Résultat, Homme, Traitement instrumental, Equipement biomédical
Mots-clés Pascal anglais : Radiotherapy, Information transmission, Equipment, Reproduction, Therapeutic protocol, Compatibility, Transfer, Technique, Result, Human, Instrumentation therapy, Biomedical equipment
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0407805
Code Inist : 002B26N. Création : 19/12/1997.