About: Segmentation of Pulmonary Opacification in Chest CT Scans of COVID-19 Patients

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About: Segmentation of Pulmonary Opacification in Chest CT Scans of COVID-19 Patients Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : covidontheweb.inria.fr associated with source document(s)

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type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
title	Segmentation of Pulmonary Opacification in Chest CT Scans of COVID-19 Patients
Creator	Parker, William Nicolaou, Savvas Laradji, Issam Lensink, Keegan Barbano, Emilio »more»
source	ArXiv
abstract	The Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has rapidly spread into a global pandemic. A form of pneumonia, presenting as opacities with in a patient's lungs, is the most common presentation associated with this virus, and great attention has gone into how these changes relate to patient morbidity and mortality. In this work we provide open source models for the segmentation of patterns of pulmonary opacification on chest Computed Tomography (CT) scans which have been correlated with various stages and severities of infection. We have collected 663 chest CT scans of COVID-19 patients from healthcare centers around the world, and created pixel wise segmentation labels for nearly 25,000 slices that segment 6 different patterns of pulmonary opacification. We provide open source implementations and pre-trained weights for multiple segmentation models trained on our dataset. Our best model achieves an opacity Intersection-Over-Union score of 0.76 on our test set, demonstrates successful domain adaptation, and predicts the volume of opacification within 1.7/% of expert radiologists. Additionally, we present an analysis of the inter-observer variability inherent to this task, and propose methods for appropriate probabilistic approaches.
has issue date	2020-07-07(xsd:dateTime)
has license	arxiv
sha1sum (hex)	09c4bd3bfa945f1f88206d8527326283e45d2e11
resource representing a document's title	Segmentation of Pulmonary Opacification in Chest CT Scans of COVID-19 Patients
resource representing a document's body	covid:09c4bd3bfa945f1f88206d8527326283e45d2e11#body_text
is schema:about of	named entity 'inherent' named entity 'patient' named entity 'slices' named entity 'CT Scans' named entity 'HEALTHCARE' »more»

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