Siemens Healthineers International Ag

Tatu Heikki Leinonen

Michael Matthew Folkerts

Jessica Perez

Matti Ropo

Pierre Lansonneur

Matti Sakari Ropo

For planning radiation treatment, candidate radiation treatment plans are evaluated and optimized using an objective function that includes a combination of a first objective function and a second objective function. The first objective function is configured for determining a value of a dose metric. The second objective function is configured for determining a value of a term that is added to the value of the dose metric to account for spots or beam lets that have a weight that is greater than zero and less than a minimum threshold value. The value of the term is added to the value of the dose metric. In effect, spots or beam lets with a weight that is not zero and that is also less than a minimum threshold value are penalized during treatment planning.

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Helsinki, Finland

Tatu Heikki Leinonen