Spatial Point Process Model Predicts Survival in Clear Cell Renal Cell Carcinoma
Bhat, P.; Hwang, M.; Jahedi, A.; Sircar, K.; Kannan, K.
Show abstract
Among renal cell carcinomas (RCCs), clear cell RCCs (ccRCCs) is a highly aggressive class characterized by highly invasive clinical course and poor survival. The presence of a sarcomatoid component implicates an even poorer prognosis. Spatial measures can establish features that could be routinely used in clinical practice to stratify important RCC outcomes. Therefore, we tested the effectiveness of spatial features as predictors of survival differentiation in 58 Grade 2 ccRCCs. We developed a machine learning model using the acquired spatial features to predict survival in Grade 2 ccRCCs which we termed "SurvCal". The receiver operating characteristic accuracy from the derived model was 0.812. Subsequent feature analysis identified the spatial model fitting intensity parameter Gamma and the pair correlation function as critical features in distinguishing the classes. In the light of the increasing digitization of pathology routines, our results demonstrate the importance of spatial point pattern features as determinants of ccRCC survival outcomes and phenotypes.
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