Multimodal data integration using deep learning predicts overall
survival of patients with glioma
Abstract
Gliomas are highly heterogenous diseases with poor prognosis. Precise
survival prediction could benefit further clinical decision-making,
clinical trial incursion and health economics. Recent research has
emphasized the prognostic value of magnetic resonance imaging,
pathological specimens and circulating biomarkers. However, the
integrative potential and efficacy of these modalities require to be
further validated. After incorporating 218 patients of TCGA glioma
datasets of and 54 patients of Huashan cohort with complementary
prognostic information, we established Squeeze-and-excitation deep
learning feature extractor (SE-DLFE) for T1-contrast enhanced images and
histological slides, and explored to screen significant circulating
5-hydroxymethylcytosines (5hmC) profiles for glioma survival by
LASSO-Cox regression. Therefore, a prognostication predictive model with
high efficiency was obtained through survival support vector machine
(SVM) multimodal integration of radiologic imaging, histopathologic
imaging features, genome-wide 5hmC in circulating cell-free DNA (cf-DNA)
and clinical variables, suggesting a valid strategy (C-index = 0.897;
Brier score = 0.118) for improved survival risk stratification of glioma
patients.