Comparison of the KonRad IMRT and XiO treatment planning systems.

Journal of Applied Clinical Medical Physics
Bodo Reitz, Moyed Miften

Abstract

Reducing the treatment time for IMRT patients is highly desirable. The objective of this work was to evaluate the new clinical Siemens KonRad inverse treatment planning system (TPS) and compare it to the CMS XiO TPS with special emphasis on the segmentation efficiency. For head and neck, liver and prostate cancer patients, step-and-shoot IMRT plans were designed using both CMS XiO and Siemens KonRad TPS. Number, direction and energy of beams used were the same in the plans from both systems for each treatment site. The plans were optimized to achieve the same clinical objectives concerning dose to the target volume and to the relevant organs-at-risk (OARs). The number of intensity levels were minimized until the clinical objectives could not be achieved anymore. Dose-volume histograms (DVHs), mean- and maximum-doses were compared, as well as the number of beam segments and monitor units (MUs). The beams of each plan were delivered individually on a MapCheck device to verify the agreement between calculations and measurements to be less than 3%-3 mm distance-to-agreement. Plans optimized with KonRad resulted in fewer segments and lower number of MUs and therefore reduced delivery time on average by 20%, while achieving similar d...Continue Reading

References

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Citations

Jan 25, 2012·Radiation Oncology·Marcello SabatinoFlorian Würschmidt

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Software Mentioned

MatLab
KonRad
MapCheck
XiO

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