L. McCrickard, S. Koenig, T. Fox and N. Ezquerra. Using Regression Techniques for the Automated Selection of Radiosurgery Plans. In Proceedings of the International ICSC Symposium on Advanced Computing in Biomedicine (ACBM), pages 71-77, 2001.

Abstract: The goal of our research is to automatically score radiosurgery plans. Radiosurgery is a technique for treating brain lesions with high dose radiation. When selecting a plan, the clinician must tradeoff between the complexity of executing the plan and the conformity in delivering the radiation. This decision depends on the treatment preferences of the clinician. Our research studies whether it is possible to learn to score radiosurgery plans in the same way the clinician does. We use regression to learn a preference function that maps plan properties such as complexity and conformity to the level of satisfaction that the plan holds for the clinician. The preference function is then used to predict the level of satisfaction that the clinician will have for unseen plans. The preference function makes it possible to either automatically select a radiosurgery plan for the clinician or make his task less time-consuming by sorting all plans according to their scores. We performed experiments with four different classes of preference functions and were able to identify the best plan with high reliability. We conclude that using regression to learn the treatment preferences of clinicians is a promising approach to automate or support the selection of radiosurgery plans in a clinician-specific manner.

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