KEYWORDS: Image segmentation, Tumors, Brain, 3D image processing, Magnetic resonance imaging, Neuroimaging, 3D modeling, Performance modeling, Data modeling
Accurately brain tumor segmentation is critical on treatment plan making and treatment outcome prediction. Manually segmenting tumor is tedious and time consuming. Therefore, developing a reliable and automatic brain tumor segmentation model is necessary. In this study, we developed a new multimodal weighted network (MW-Net), which fully utilizes the biological information from multiple modalities. Since the contribution from different modality is different, the relative weight in introduced into MW-Net and trained as the hyperparameter with other parameters in an end-to-end way. The 3D segmentation results can be directly obtained in testing stage. The experimental results showed MW-Net outperformed 3D-U-Net.
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