DC pole | Wartość | Język |
dc.contributor.author | Koprowski, Robert | - |
dc.contributor.author | Rzendkowski, M. | - |
dc.contributor.author | Wróbel, Zygmunt | - |
dc.date.accessioned | 2019-06-04T09:28:16Z | - |
dc.date.available | 2019-06-04T09:28:16Z | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | BioMedical Engineering, Vol. 13, iss. 1 (2014), art. no. 16 | pl_PL |
dc.identifier.uri | http://hdl.handle.net/20.500.12128/9340 | - |
dc.description.abstract | Introduction: In many practical aspects of ophthalmology, it is necessary to assess
the severity degree of glaucoma in cases where, for various reasons, it is impossible
to perform a visual field test - static perimetry. These are cases in which the visual
field test result is not reliable, e.g. advanced AMD (Age-related Macular Degeneration).
In these cases, there is a need to determine the severity of glaucoma, mainly on the
basis of optic nerve head (ONH) and retinal nerve fibre layer (RNFL) structure. OCT is
one of the diagnostic methods capable of analysing changes in both, ONH and RNFL
in glaucoma.
Material and method: OCT images of the eye fundus of 55 patients (110 eyes) were
obtained from the SOCT Copernicus (Optopol Tech. SA, Zawiercie, Poland). The authors
proposed a new method for automatic determination of the RNFL (retinal nerve fibre
layer) and other parameters using: mathematical morphology and profiled segmentation
based on morphometric information of the eye fundus. A quantitative ratio of the
quality of the optic disk and RNFL – BGA (biomorphological glaucoma advancement)
was also proposed. The obtained results were compared with the results obtained from
a static perimeter.
Results: Correlations between the known parameters of the optic disk as well as those
suggested by the authors and the results obtained from static perimetry were calculated.
The result of correlation with the static perimetry was 0.78 for the existing methods of
image analysis and 0.86 for the proposed method. Practical usefulness of the proposed
ratio BGA and the impact of the three most important features on the result were
assessed. The following results of correlation for the three proposed classes were
obtained: cup/disk diameter 0.84, disk diameter 0.97 and the RNFL 1.0. Thus, analysis of
the supposed visual field result in the case of glaucoma is possible based only on OCT
images of the eye fundus.
Conclusions: The calculations and analyses performed with the proposed algorithm and
BGA ratio confirm that it is possible to calculate supposed mean defect (MD) of the
visual field test based on OCT images of the eye fundus. | pl_PL |
dc.language.iso | en | pl_PL |
dc.rights | Uznanie autorstwa 3.0 Polska | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/pl/ | * |
dc.subject | Image processing | pl_PL |
dc.subject | Measurement automation | pl_PL |
dc.subject | OCT | pl_PL |
dc.subject | Segmentation | pl_PL |
dc.subject | BGA | pl_PL |
dc.subject | Biomorphological glaucoma advancement | pl_PL |
dc.subject | Glaucoma | pl_PL |
dc.title | Automatic method of analysis of OCT images in assessing the severity degree of glaucoma and the visual field loss | pl_PL |
dc.type | info:eu-repo/semantics/article | pl_PL |
dc.relation.journal | BioMedical Engineering | pl_PL |
dc.identifier.doi | 10.1186/1475-925X-13-16 | - |
Pojawia się w kolekcji: | Artykuły (WNŚiT)
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