Reduction of Treatment Time in IMRT Step and Shoot Irradiations by Means of a Changed Fractionation Scheme

  • Karl-Heinz Grosser
Conference paper

Abstract

In the summer 1998 we started IMRT treatments with the step and shoot approach, using KONRAD inverse treatment planning system and a sequencer tool that has been developed at DKFZ [1], Compared to conventional multiple field irradiation techniques the treatment time is longer in IMRT step and shoot treatments. Using a SIEMENS accelerator and a SIEMENS MLC the treatment time is in complex cases up to 50 minutes. Therefore the number of patients per day who can be treated is restricted to a small number.

Keywords

Fractionation Meningioma 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Bortfeld T, Kahler D L, Waldron T J, Boyer A L 1994 X-ray field compensation with multileaf collimators. Int J Rad Oncol Biol Phys 32 163–173.Google Scholar
  2. [2]
    Xia P, Verhey L J 1998 Multileaf collimator leaf sequencing algorithm for intensity modulated beams with multiple static segments. Med Phys 25 1424–1434PubMedCrossRefGoogle Scholar
  3. [3]
    Galvin J M, Chen X G, Smith R M 1993 Combining multileaf field to modulate fluence distributions. Int J Rad Oncol Biol Phys 21 97–705.Google Scholar
  4. [4]
    Que W 1999 Comparison of algorithms for multileaf collimator field segmentation. Med Phys 26 2390–2396PubMedCrossRefGoogle Scholar
  5. [5]
    Siochi. R A C Minimizing static intensity modulation delivery time using an intensity solid paradigm. 1999 Int J Rad Oncol Biol Phys 43 671–680.CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • Karl-Heinz Grosser
    • 1
  1. 1.Department of Medical PhysicsGerman Cancer Research Center (DKFZ)HeidelbergGermany

Personalised recommendations