Thomas Kalinowski
Reducing the number of monitor units in multileaf collimator field segmentation
Preprint series: Preprints aus dem Fachbereich Mathematik, Universität Rostock

MSC:

92C50 Medical applications (general)

90C90 Applications of mathematical programming

Abstract: Multileaf collimators (MLCs) are the prevailing tool for
the realization of radiation fields in intensity modulated radiation
therapy (IMRT). One step in the treatment planning is to
determine a set of leaf positions realizing a certain intensity
modulated radiation field. In this paper we suggest two
extensions in the use of the MLC that lead to considerable
savings in terms of monitor units, thus potentially increasing
the treatment quality. We test our method with random and with
clinical sample matrices.

Keywords: leaf sequencing, radiation therapy optimization, intensity modulation, multileaf collimator, IMRT