Combined radiomics and liquid biopsy reflect tumor biology towards multimodal non-invasive prostate cancer risk stratification
Riediger, A. L.; Meinzer, C.; Janscho, D.; Eickelschulte, S.; Janke, F.; Lazareva, O.; Huebschmann, D.; Stegle, O.; Froehling, S.; Bonekamp, D.; Schlemmer, H.-P.; Sueltmann, H.; Goertz, M.
Show abstract
Accurate risk stratification is essential to prevent over- and undertreatment in newly diagnosed prostate cancer (PCa). In a pilot study with 49 men (36 PCa patients, 13 controls), we integrated non-invasive data modalities collected in a real-world clinical setting: radiomics from multiparametric magnetic resonance imaging (T2/ADC index-lesion features), routine and extended serological parameters, multimodal liquid biopsy features (copy number variations, chromosomal instability, methylation, fragmentation in plasma/urinary cfDNA), plus clinical and lifestyle factors. Pairwise Spearman analyses revealed significant inter-modality correlations. Our holistic PCa characterization showed that imaging phenotypes reflect tumor stage and molecular aggressiveness: lower ADC metrics correlated inversely with genomic cfDNA features, while ADC/T2 lesion volumes correlated positively with molecular signals. These results indicate that routine imaging and serological data may capture systemic tumor biology. Our proof-of-concept demonstrates feasibility of combining multiple data modalities in real-world clinical workflows and supports developing integrative models for non-invasive PCa risk stratification.
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