Article ID: | iaor200948274 |
Country: | Canada |
Volume: | 4 |
Issue: | 1 |
Start Page Number: | 49 |
End Page Number: | 57 |
Publication Date: | Jan 2009 |
Journal: | Algorithmic Operations Research |
Authors: | Kalinowski Thomas, Kiesel Antje |
Keywords: | medicine |
Shape matrix decomposition is a subproblem in radiation therapy planning. A given fluence matrix A has to be decomposed into a sum of shape matrices corresponding to homogeneous fields that can be shaped by a multileaf collimator (MLC). We solve the problem of minimizing the delivery time for an approximation of A satisfying certain prescribed bounds, under the additional condition that the used MLC requires the interleaf collision constraint.