Ms. Mohammad Yahyatabar Profile

Mohammad Yahyatabar

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SPIE Journal Paper | 17 October 2023

Joint classification and segmentation for an interpretable diagnosis of acute respiratory distress syndrome from chest x-rays

Mohammad Yahyatabar, Philippe Jouvet, Farida Cheriet

JMI, Vol. 10, Issue 05, 054504, (October 2023) https://doi.org/10.1117/12.10.1117/1.JMI.10.5.054504

KEYWORDS: Image segmentation, Lung, Chest imaging, Image classification, Data modeling, Education and training, Performance modeling, Machine learning, Pathology, Statistical modeling

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PurposeAcute respiratory distress syndrome (ARDS) is a life-threatening condition that can cause a dramatic drop in blood oxygen levels due to widespread lung inflammation. Chest radiography is widely used as a primary modality to detect ARDS due to its crucial role in diagnosing the syndrome, and the x-ray images can be obtained promptly. However, despite the extensive literature on chest x-ray (CXR) image analysis, there is limited research on ARDS diagnosis due to the scarcity of ARDS-labeled datasets. Additionally, many machine learning-based approaches result in high performance in pulmonary disease diagnosis, but their decisions are often not easily interpretable, which can hinder their clinical acceptance. This work aims to develop a method for detecting signs of ARDS in CXR images that can be clinically interpretable.ApproachTo achieve this goal, an ARDS-labeled dataset of chest radiography images is gathered and annotated for training and evaluation of the proposed approach. The proposed deep classification-segmentation model, Dense-Ynet, provides an interpretable framework for automatically diagnosing ARDS in CXR images. The model takes advantage of lung segmentation in diagnosing ARDS. By definition, ARDS causes bilateral diffuse infiltrates throughout the lungs. To consider the local involvement of lung areas, each lung is divided into upper and lower halves, and our model classifies the resulting lung quadrants.ResultsThe quadrant-based classification strategy yields the area under the receiver operating characteristic curve of 95.1% (95% CI 93.5 to 96.1), which allows for providing a reference for the model’s predictions. In terms of segmentation, the model accurately identifies lung regions in CXR images even when lung boundaries are unclear in abnormal images.ConclusionsThis study provides an interpretable decision system for diagnosing ARDS, by following the definition used by clinicians for the diagnosis of ARDS from CXR images.

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