Title
Fusing visual and clinical information for lung tissue classification in high-resolution computed tomography
Date Issued
01 September 2010
Access level
metadata only access
Resource Type
journal article
Author(s)
Depeursinge A.
Iavindrasana J.
Cohen G.
Platon A.
Poletti P.A.
Müller H.
Image and Pervasive Access Lab
Publisher(s)
Elsevier B.V.
Abstract
Objective: We investigate the influence of the clinical context of high-resolution computed tomography (HRCT) images of the chest on tissue classification. Methods and materials: 2D regions of interest in HRCT axial slices from patients affected with an interstitial lung disease are automatically classified into five classes of lung tissue. Relevance of the clinical parameters is studied before fusing them with visual attributes. Two multimedia fusion techniques are compared: early versus late fusion. Early fusion concatenates features in one single vector, yielding a true multimedia feature space. Late fusion consisting of the combination of the probability outputs of two support vector machines. Results and conclusion: The late fusion scheme allowed a maximum of 84% correct predictions of testing instances among the five classes of lung tissue. This represents a significant improvement of 10% compared to a pure visual-based classification. Moreover, the late fusion scheme showed high robustness to the number of clinical parameters used, which suggests that it is appropriate for mining clinical attributes with missing values in clinical routine. © 2010 Elsevier B.V.
Start page
13
End page
21
Volume
50
Issue
1
Language
English
OCDE Knowledge area
Ingeniería médica Radiología, Medicina nuclear, Imágenes médicas
Scopus EID
2-s2.0-77955268957
PubMed ID
Source
Artificial Intelligence in Medicine
ISSN of the container
09333657
Sponsor(s)
This work was supported by the Swiss National Science Foundation (FNS) with grant 200020-118638/1 , the equalization fund of the University and Hospitals of Geneva (grant 05-9-II ), the EU 6th Framework Program in the context of the KnowARC project ( IST 032691 ) and the ONCO-MEDIA ICT Asia project. 6 6
Sources of information: Directorio de Producción Científica Scopus