File Name : figures_v9_si figure 1.png Caption : fig. 6. accurate identification of brain metastatic potential in μbbn device. (a) schematic of model development process. this process is divided into a training (grey) and testing (light blue) phase that outputs a probability a cell has a high metastatic potential (green). (b) receiver operating characteristic (roc) curve comparing classification methods for cell lines. upper left corner indicates good classification accuracy. (c) roc curve comparing classification methods for pdx samples.