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Abstract #0812

The ensemble of optimized Deep Learning Neural Networks improves the estimate of the Choroid Plexus Volume: application to Multiple Sclerosis

Valentina Visani1, Valerio Natale2, Annalisa Colombi3, Agnese Tamanti3, Alessandra Bertoldo1, Corina Marjin3, Francesca Benedetta Pizzini2, Massimiliano Calabrese3, and Marco Castellaro1
1Department of Information Engineering, University of Padova, Padova, Italy, 2University Hospital of Verona, Verona, Italy, 3Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy

Synopsis

Keywords: Segmentation, Machine Learning/Artificial Intelligence, Choroid Plexus

The Choroid Plexus (ChP) is a brain vascular tissue involved in regulatory processes. ChP Volume (ChPV) modifications are related to neurodegenerative disorders, consequently, it was suggested the use of ChPV as biomarker. This work proposes a method for the automatic segmentation of ChP based on Deep-Learning Neural-Networks (DNNs) hyperparameters optimization. Ninety-Six hyperparameters and architectures combinations were trained on T1-w MRI in MONAI, first selection was made on bias and variance and best DNNs were ensembled by major voting. Ensemble model outperforms single DNNs and freely available software (FreeSurfer, Gaussian Mixture Model), highlighting the ensembles DNNs exploitability to automatically estimate ChPV.

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Keywords