In this work we evaluated the possibility of carrying out classifications of the outcome of patients with COVID19 disease through machine learning (ML) techniques working on small datasets of computed tomography (CT) images. In fact, one of the most common problems for medical artificial intelligence (AI) applications is the limited availability of annotated clinical data for model training. In the framework of the artificial intelligence in medicine (AIM) project funded by INFN, we analyzed datasets of CT scans of 79 subjects combined with clinical data containing information relating to positive outcome (no need for intensive care) or poor prognosis (admission into intensive care unit and/or death). After segmentation of ground glass opacities related to this pathology, the radiomic features were subsequently extracted from the CTs, selected through various algorithms of dimension reduction or fea ture selection and used for the training various classifiers. Values of the area under the ROC curve (AUC) of 0.84 were obtained with Gradient Boosting after BORUTA feature selection. Features selected are related to disease characteristics of poor prognosis patients.

Marrale Maurizio, La Fiura A, Collura G, D’Oca Maria Cristina, Lizzi F, Brero F, et al. (2022). Machine learning classification for COVID19 patients performed on small datasets of CT scans.. In M.B.e.G.B.B. B. Alzani (a cura di), Atti del 108° Congresso Nazionale SIF.

Machine learning classification for COVID19 patients performed on small datasets of CT scans.

Marrale Maurizio
;
Collura G;D’Oca Maria Cristina;
2022-09-22

Abstract

In this work we evaluated the possibility of carrying out classifications of the outcome of patients with COVID19 disease through machine learning (ML) techniques working on small datasets of computed tomography (CT) images. In fact, one of the most common problems for medical artificial intelligence (AI) applications is the limited availability of annotated clinical data for model training. In the framework of the artificial intelligence in medicine (AIM) project funded by INFN, we analyzed datasets of CT scans of 79 subjects combined with clinical data containing information relating to positive outcome (no need for intensive care) or poor prognosis (admission into intensive care unit and/or death). After segmentation of ground glass opacities related to this pathology, the radiomic features were subsequently extracted from the CTs, selected through various algorithms of dimension reduction or fea ture selection and used for the training various classifiers. Values of the area under the ROC curve (AUC) of 0.84 were obtained with Gradient Boosting after BORUTA feature selection. Features selected are related to disease characteristics of poor prognosis patients.
22-set-2022
COVID19, CT scans, medical artificial intelligence AI
978-88-7438-130-2
Marrale Maurizio, La Fiura A, Collura G, D’Oca Maria Cristina, Lizzi F, Brero F, et al. (2022). Machine learning classification for COVID19 patients performed on small datasets of CT scans.. In M.B.e.G.B.B. B. Alzani (a cura di), Atti del 108° Congresso Nazionale SIF.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/571247
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