Researchers are always trying to improve techniques for treating cancer.
To help, researchers have designed cancer cell models to help predict the outcomes for patients.
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Model of tumor growth in a rat brain before radiation treatment (left) and after one session of radiotherapy (right). The different colors represent tumor cell concentration, with red being the highest. The treatment reduced the tumor mass substantially. (Credit: Lima et. al. 2017, Hormuth et. al. 2015)