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Software for Calculating Dose and Risk

  • Georg Stamm
Part of the Medical Radiology book series (MEDRAD)

Abstract

Calculation or even rough estimation of patient dose and risk is a rather complicated and time-consuming process. Software tools may help to at least facilitate the calculations assuming some necessary simplifications. The different approaches from on-line tools and calculators for mobile devices for a quick mean dose display for selected regions up to examples for precise Monte-Carlo simulations for real scanner setups will be presented. As every patient has his own geometry and constitution it is nearly impossible to calculate individual dose values. To at least calculate data to compare the performance of different scanners or to benchmark own scan protocols a common used approach is using standard sized patient phantoms and databases matching the design and setup of different scanners. Due to rapidly evolving scanner technique with sophisticated methods of tube current modulations which cannot be covered by the dose calculators the use of some simplifications using mean conversion factors or mean values for the tube current are necessary to estimate a mean dose to the standard sized patient within a range of ±15%. This also holds for all calculations for specific organ dose values like uterus dose and eye-lens dose. Individual or personalized dose estimates will remain a task for future work.

Keywords

Conversion Factor Dose Calculator Tube Current Modulation Dose Area Product Automatic Exposure Control 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

On-line Calculators and Software Using Conversion Factors

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Software Packages Including Scanner Design Factors

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Software for Monte Carlo Simulation and Voxel Phantoms

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Other Software Packages, Mainly for Conventional X-rays

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.Medizinische Hochschule HannoverInstitut für Diagnostische und Interventionelle RadiologieHannoverGermany

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