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Application of artificial neural networks for the classification of liver lesions by image texture parameters
Seetharaman Swarnamani
Published in Elsevier Science Ltd, Oxford, United Kingdom
1996
PMID: 9123642
Volume: 22
   
Issue: 9
Pages: 1177 - 1181
Abstract
Ultrasound imaging is a powerful tool for characterizing the state of soft tissues; however, in some cases, where only subtle differences in images are seen as in certain liver lesions such as hemangioma and malignancy, existing B-scan methods are inadequate. More detailed analyses of image texture parameters along with artificial neural networks can be utilized to enhance differentiation. From B-scan ultrasound images, 11 texture parameters comprising of first, second and run length statistics have been obtained for normal, hemangioma and malignant livers. Tissue characterization was then performed using a multilayered backpropagation neural network. The results for 113 cases have been compared with a classification based on discriminant analysis. For linear discriminant analysis, classification accuracy is 79.6% and with neural networks the accuracy is 100%. The present results show that neural networks classify better than discriminant analysis, demonstrating a much potential for clinical application.Ultrasound imaging is a powerful tool for characterizing the state of soft tissues; however, in some cases, where only subtle differences in images are seen as in certain liver lesions such as hemangioma and malignancy, existing B-scan methods are inadequate. More detailed analyses of image texture parameters along with artificial neural networks can be utilized to enhance differentiation. From B-scan ultrasound images, 11 texture parameters comprising of first, second and run length statistics have been obtained for normal, hemangioma and malignant livers. Tissue characterization was then performed using a multilayered backpropagation neural network. The results for 113 cases have been compared with a classification based on discriminant analysis. For linear discriminant analysis, classification accuracy is 79.6% and with neural networks the accuracy is 100%. The present results show that neural networks classify better than discriminant analysis, demonstrating a much potential for clinical application.
About the journal
JournalData powered by TypesetUltrasound in Medicine and Biology
PublisherData powered by TypesetElsevier Science Ltd, Oxford, United Kingdom
ISSN03015629
Open AccessNo
Concepts (28)
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    Backpropagation
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    Image analysis
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    Image quality
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    Medical imaging
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    Neural networks
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    Tissue
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    IMAGE TEXTURE PARAMETERS
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    LIVER LESIONS
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    Ultrasonic imaging
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    Article
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    Artificial neural network
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    B SCAN
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    Diagnostic accuracy
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    Diagnostic imaging
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    Echography
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    LIVER CARCINOMA
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    LIVER HEMANGIOMA
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    Priority journal
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    RADIOFREQUENCY
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    Soft tissue
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    DIAGNOSIS, DIFFERENTIAL
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    Discriminant analysis
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    HEMANGIOMA
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    Humans
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    Image processing, computer-assisted
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    Liver neoplasms
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    Neural networks (computer)
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    Reproducibility of results