Throughout the year 2000 our standard treatment planning software TRiP98 [1, 2] which went into production last year [3] was used in combination with the Voxelplan environment for the planning of all 32 patients [4]. Specific improvements on the software side were the introduction of inhomogeneous dose prescriptions, extensions of the beam model and addition of auxiliary functions. Inhomogeneou...

Radiation therapy attempts to deliver ionizing radiation to the tumour and can improve the survival chances and/or quality of life of patients. There are chances of errors and uncertainties in the entire process of radiotherapy that may affect the accuracy and precision of treatment management and decrease degree of conformation. All expected inaccuracies, like radiation dose determination, vol...

In the three therapy beam times 2007 about 50 patients were planned and treated with our treatment planning software, TRiP98, and its development version, TRiP98BEAM. In the past, the standard method was to optimize the biological target dose distribution for the contributing partial fields singly. Due to the enormous effort for the computation of biological effects, only a simple, but still su...

Scripting in radiotherapy treatment planning systems not only simplifies routine planning tasks but can also be used for clinical research. Treatment planning scripting can only be utilized in a system that has a built-in scripting interface. Among the commercially available treatment planning systems, Pinnacle (Philips) and Raystation (Raysearch Lab.) have inherent scripting functionality. CMS...

background: ewing sarcoma family of tumors (esfts) is the second most common primary tumors of bone in childhood. the decision regarding the optimal modality for achieving local tumor control remains uncertain. the aim of this study was to report the clinical features and outcome as well as reviewing risk factors in patients. materials and methods: this retrospective study included 75 esfts pat...

This paper reviews efforts of incorporating FDG based PET/CT data into target volume delineation for radiotherapy treatment planning. Relationship between PET-based and CT-based volumes generally suffer from poor correlation between the two image data sets, expressed in terms of large statistical variation in gross tumor volume ratios irrespective of the thresholding method used. Future of biol...