Despeckle Filtering for Multiscale Amplitude-Modulation Frequency-Modulation (AM-FM) Texture Analysis of Ultrasound Images of the Intima-Media Complex
The intima-media thickness (IMT) of the common carotid artery (CCA) is widely used as an early indicator of cardiovascular disease (CVD). Typically, the IMT grows with age and this is used as a sign of increased risk of CVD. Beyond thickness, there is also clinical interest in identifying how the co...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Biomedical Imaging |
| Online Access: | http://dx.doi.org/10.1155/2014/518414 |
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| author | C. P. Loizou V. Murray M. S. Pattichis M. Pantziaris A. N. Nicolaides C. S. Pattichis |
| author_facet | C. P. Loizou V. Murray M. S. Pattichis M. Pantziaris A. N. Nicolaides C. S. Pattichis |
| author_sort | C. P. Loizou |
| collection | DOAJ |
| description | The intima-media thickness (IMT) of the common carotid artery (CCA) is widely used as an early indicator of cardiovascular disease (CVD). Typically, the IMT grows with age and this is used as a sign of increased risk of CVD. Beyond thickness, there is also clinical interest in identifying how the composition and texture of the intima-media complex (IMC) changed and how these textural changes grow into atherosclerotic plaques that can cause stroke. Clearly though texture analysis of ultrasound images can be greatly affected by speckle noise, our goal here is to develop effective despeckle noise methods that can recover image texture associated with increased rates of atherosclerosis disease. In this study, we perform a comparative evaluation of several despeckle filtering methods, on 100 ultrasound images of the CCA, based on the extracted multiscale Amplitude-Modulation Frequency-Modulation (AM-FM) texture features and visual image quality assessment by two clinical experts. Texture features were extracted from the automatically segmented IMC for three different age groups. The despeckle filters hybrid median and the homogeneous mask area filter showed the best performance by improving the class separation between the three age groups and also yielded significantly improved image quality. |
| format | Article |
| id | doaj-art-b2a3a41845b64f4d8b3bd1aeabd91331 |
| institution | Kabale University |
| issn | 1687-4188 1687-4196 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Biomedical Imaging |
| spelling | doaj-art-b2a3a41845b64f4d8b3bd1aeabd913312025-08-20T03:39:21ZengWileyInternational Journal of Biomedical Imaging1687-41881687-41962014-01-01201410.1155/2014/518414518414Despeckle Filtering for Multiscale Amplitude-Modulation Frequency-Modulation (AM-FM) Texture Analysis of Ultrasound Images of the Intima-Media ComplexC. P. Loizou0V. Murray1M. S. Pattichis2M. Pantziaris3A. N. Nicolaides4C. S. Pattichis5Departement of Computer Science, School of Sciences, Intercollege, 92 Ayias Phylaxeos Street, P. O. Box 51604, CY-3507 Limassol, CyprusDepartement of Electrical Engineering, Universidad de Ingenieria y Tecnologia, 2221 Lima, PeruDepartement of Electrical Engineering, Universidad de Ingenieria y Tecnologia, 2221 Lima, PeruCyprus Institute of Neurology and Genetics, 1683 Nicosia, CyprusThe Vascular Screening and Diagnostic Centre, 1080 Nicosia, CyprusDepartement of Computer Science, University of Cyprus, 1678 Nicosia, CyprusThe intima-media thickness (IMT) of the common carotid artery (CCA) is widely used as an early indicator of cardiovascular disease (CVD). Typically, the IMT grows with age and this is used as a sign of increased risk of CVD. Beyond thickness, there is also clinical interest in identifying how the composition and texture of the intima-media complex (IMC) changed and how these textural changes grow into atherosclerotic plaques that can cause stroke. Clearly though texture analysis of ultrasound images can be greatly affected by speckle noise, our goal here is to develop effective despeckle noise methods that can recover image texture associated with increased rates of atherosclerosis disease. In this study, we perform a comparative evaluation of several despeckle filtering methods, on 100 ultrasound images of the CCA, based on the extracted multiscale Amplitude-Modulation Frequency-Modulation (AM-FM) texture features and visual image quality assessment by two clinical experts. Texture features were extracted from the automatically segmented IMC for three different age groups. The despeckle filters hybrid median and the homogeneous mask area filter showed the best performance by improving the class separation between the three age groups and also yielded significantly improved image quality.http://dx.doi.org/10.1155/2014/518414 |
| spellingShingle | C. P. Loizou V. Murray M. S. Pattichis M. Pantziaris A. N. Nicolaides C. S. Pattichis Despeckle Filtering for Multiscale Amplitude-Modulation Frequency-Modulation (AM-FM) Texture Analysis of Ultrasound Images of the Intima-Media Complex International Journal of Biomedical Imaging |
| title | Despeckle Filtering for Multiscale Amplitude-Modulation Frequency-Modulation (AM-FM) Texture Analysis of Ultrasound Images of the Intima-Media Complex |
| title_full | Despeckle Filtering for Multiscale Amplitude-Modulation Frequency-Modulation (AM-FM) Texture Analysis of Ultrasound Images of the Intima-Media Complex |
| title_fullStr | Despeckle Filtering for Multiscale Amplitude-Modulation Frequency-Modulation (AM-FM) Texture Analysis of Ultrasound Images of the Intima-Media Complex |
| title_full_unstemmed | Despeckle Filtering for Multiscale Amplitude-Modulation Frequency-Modulation (AM-FM) Texture Analysis of Ultrasound Images of the Intima-Media Complex |
| title_short | Despeckle Filtering for Multiscale Amplitude-Modulation Frequency-Modulation (AM-FM) Texture Analysis of Ultrasound Images of the Intima-Media Complex |
| title_sort | despeckle filtering for multiscale amplitude modulation frequency modulation am fm texture analysis of ultrasound images of the intima media complex |
| url | http://dx.doi.org/10.1155/2014/518414 |
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