Can the fractal dimension be applied for the early diagnosis of non-proliferative diabetic retinopathy?
The fractal dimension has been employed as a useful parameter in the diagnosis of retinal disease. Avakian et al. (Curr Eye Res 2002; 24: 274-280), comparing the vascular pattern of normal patients with mild to moderate non-proliferative diabetic retinopathy (NPDR), found a significant difference be...
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Associação Brasileira de Divulgação Científica
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| Series: | Brazilian Journal of Medical and Biological Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009001000009&lng=en&tlng=en |
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| author | A.C.B. Kunicki A.J. Oliveira M.B.M. Mendonça C.T.F. Barbosa R.A. Nogueira |
| author_facet | A.C.B. Kunicki A.J. Oliveira M.B.M. Mendonça C.T.F. Barbosa R.A. Nogueira |
| author_sort | A.C.B. Kunicki |
| collection | DOAJ |
| description | The fractal dimension has been employed as a useful parameter in the diagnosis of retinal disease. Avakian et al. (Curr Eye Res 2002; 24: 274-280), comparing the vascular pattern of normal patients with mild to moderate non-proliferative diabetic retinopathy (NPDR), found a significant difference between them only in the macular region. This significant difference in the box-counting fractal dimension of the macular region between normal and mild NPDR patients has been proposed as a method of precocious diagnosis of NPDR. The aim of the present study was to determine if fractal dimensions can really be used as a parameter for the early diagnosis of NPDR. Box-counting and information fractal dimensions were used to parameterize the vascular pattern of the human retina. The two methods were applied to the whole retina and to nine anatomical regions of the retina in 5 individuals with mild NPDR and in 28 diabetic but opthalmically normal individuals (controls), with age between 31 and 86 years. All images of retina were obtained from the Digital Retinal Images for Vessel Extraction (DRIVE) database. The results showed that the fractal dimension parameter was not sensitive enough to be of use for an early diagnosis of NPDR. |
| first_indexed | 2024-12-20T14:57:24Z |
| format | Article |
| id | doaj.art-b66a7a8cd10a440f8b4ab03eeffad3d5 |
| institution | Directory Open Access Journal |
| issn | 1414-431X |
| language | English |
| last_indexed | 2024-12-20T14:57:24Z |
| publisher | Associação Brasileira de Divulgação Científica |
| record_format | Article |
| series | Brazilian Journal of Medical and Biological Research |
| spelling | doaj.art-b66a7a8cd10a440f8b4ab03eeffad3d52022-12-21T19:36:47ZengAssociação Brasileira de Divulgação CientíficaBrazilian Journal of Medical and Biological Research1414-431X421093093410.1590/S0100-879X2009005000020S0100-879X2009001000009Can the fractal dimension be applied for the early diagnosis of non-proliferative diabetic retinopathy?A.C.B. Kunicki0A.J. Oliveira1M.B.M. Mendonça2C.T.F. Barbosa3R.A. Nogueira4Universidade Federal Rural de PernambucoUniversidade Federal Rural de PernambucoUniversidade Federal de PernambucoUniversidade Federal de PernambucoUniversidade Federal Rural de PernambucoThe fractal dimension has been employed as a useful parameter in the diagnosis of retinal disease. Avakian et al. (Curr Eye Res 2002; 24: 274-280), comparing the vascular pattern of normal patients with mild to moderate non-proliferative diabetic retinopathy (NPDR), found a significant difference between them only in the macular region. This significant difference in the box-counting fractal dimension of the macular region between normal and mild NPDR patients has been proposed as a method of precocious diagnosis of NPDR. The aim of the present study was to determine if fractal dimensions can really be used as a parameter for the early diagnosis of NPDR. Box-counting and information fractal dimensions were used to parameterize the vascular pattern of the human retina. The two methods were applied to the whole retina and to nine anatomical regions of the retina in 5 individuals with mild NPDR and in 28 diabetic but opthalmically normal individuals (controls), with age between 31 and 86 years. All images of retina were obtained from the Digital Retinal Images for Vessel Extraction (DRIVE) database. The results showed that the fractal dimension parameter was not sensitive enough to be of use for an early diagnosis of NPDR.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009001000009&lng=en&tlng=enBox-countingFractal dimensionInformation fractal dimensionRetinaVascularizationNon-proliferative diabetic retinopathy |
| spellingShingle | A.C.B. Kunicki A.J. Oliveira M.B.M. Mendonça C.T.F. Barbosa R.A. Nogueira Can the fractal dimension be applied for the early diagnosis of non-proliferative diabetic retinopathy? Brazilian Journal of Medical and Biological Research Box-counting Fractal dimension Information fractal dimension Retina Vascularization Non-proliferative diabetic retinopathy |
| title | Can the fractal dimension be applied for the early diagnosis of non-proliferative diabetic retinopathy? |
| title_full | Can the fractal dimension be applied for the early diagnosis of non-proliferative diabetic retinopathy? |
| title_fullStr | Can the fractal dimension be applied for the early diagnosis of non-proliferative diabetic retinopathy? |
| title_full_unstemmed | Can the fractal dimension be applied for the early diagnosis of non-proliferative diabetic retinopathy? |
| title_short | Can the fractal dimension be applied for the early diagnosis of non-proliferative diabetic retinopathy? |
| title_sort | can the fractal dimension be applied for the early diagnosis of non proliferative diabetic retinopathy |
| topic | Box-counting Fractal dimension Information fractal dimension Retina Vascularization Non-proliferative diabetic retinopathy |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009001000009&lng=en&tlng=en |
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