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Abstract #3778

Quantitative Physiologic MRI Parameters Combined with Innovative Machine Learning to Distinguish Glioblastoma from Solitary Brain Metastases

Seyyed Ali Hosseini1,2, Stijn Servaes1,2, Pedro Rosa-Neto1,2, Suyash Mohan3, and Sanjeev Chawla3
1Department of Neurology & neurosurgery, Mcgill University, Montréal, QC, Canada, 2Translational Neuroimaging Laboratory, The McGill University Research Centre for Studies in Aging, Douglas Hospital, McGill University, Montréal, QC, Canada, 3Department of Radiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States

Synopsis

Keywords: Diagnosis/Prediction, Tumor, Glioblastomas, Solitary_Brain_Metastases, Quantitative_Physiologic, MRI, Innovative_Hyper-tuned_Machine_Learning

Motivation: There is an unmet need to develop advanced MRI based prediction models to distinguish glioblastomas (GBMs) from solitary brain metastases (BMs) with high-accuracy, as conventional MRI-techniques often yield ambiguous results.

Goal(s): The objective is to discriminate GBMs from solitary BMs using physiologic MRI parameters and machine-learning based novel-methods.

Approach: Employing diffusion-tensor-imaging (DTI) and dynamic-susceptibility contrast-perfusion weighted imaging (DSC-PWI), the study uses a novel machine-learning approach that integrates multiple features with hyper-tuned models to enhance pattern-recognition and prediction.

Results: The innovative-method combining interacted and non-interacted features via hyper-tuned machine-learning models significantly outperformed traditional-methods, thus achieving high accuracy and reliability in differentiating GBMs from BMs.

Impact: The integration of quantitative and physiologically-sensitive MRI-parameters with novel machine-learning based algorithms may be promising in distinguishing glioblastomas from solitary brain metastases. This approach may be useful in making prognostication and guiding optimal, personalized patient-treatments in the era of personalized-medicine.

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Keywords