Prediction of Rapid Early Progression and Survival Risk with Pre-Radiation MRI in WHO Grade 4 Glioma Patients

• URL: http://arxiv.org/abs/2306.16531v1
• Date: Wed, 28 Jun 2023 20:03:18 GMT
• Title: Prediction of Rapid Early Progression and Survival Risk with Pre-Radiation MRI in WHO Grade 4 Glioma Patients
• Authors: Walia Farzana, Mustafa M Basree, Norou Diawara, Zeina A. Shboul, Sagel Dubey, Marie M Lockhart, Mohamed Hamza, Joshua D. Palmer, Khan M. Iftekharuddin
• Abstract summary: We investigate the potential of ra-diomics, sophisticated multi-resolution fractal texture features, and different molecular features as a diagnostic and prognostic tool for prediction of REP from non-REP cases. The prediction of survival for the patients cohort produces precision of 0.881 with standard deviation of 0.056. The experimental result further shows that mul-ti-resolution fractal texture features perform better than conventional radiomics features for REP and survival outcomes.
• Score: 0.5365740459403827
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Recent clinical research describes a subset of glioblastoma patients that exhibit REP prior to start of radiation therapy. Current literature has thus far described this population using clinicopathologic features. To our knowledge, this study is the first to investigate the potential of conventional ra-diomics, sophisticated multi-resolution fractal texture features, and different molecular features (MGMT, IDH mutations) as a diagnostic and prognostic tool for prediction of REP from non-REP cases using computational and statistical modeling methods. Radiation-planning T1 post-contrast (T1C) MRI sequences of 70 patients are analyzed. Ensemble method with 5-fold cross validation over 1000 iterations offers AUC of 0.793 with standard deviation of 0.082 for REP and non-REP classification. In addition, copula-based modeling under dependent censoring (where a subset of the patients may not be followed up until death) identifies significant features (p-value <0.05) for survival probability and prognostic grouping of patient cases. The prediction of survival for the patients cohort produces precision of 0.881 with standard deviation of 0.056. The prognostic index (PI) calculated using the fused features suggests that 84.62% of REP cases fall under the bad prognostic group, suggesting potentiality of fused features to predict a higher percentage of REP cases. The experimental result further shows that mul-ti-resolution fractal texture features perform better than conventional radiomics features for REP and survival outcomes.

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