Detail publikace

The segmentation of zones with increased autofluorescence in the junctional zone of parapapillary atrophy

KOLÁŘ, R. JAN, J. LAEMMER, R. MARDIN, C.

Originální název

The segmentation of zones with increased autofluorescence in the junctional zone of parapapillary atrophy

Anglický název

The segmentation of zones with increased autofluorescence in the junctional zone of parapapillary atrophy

Typ

článek v časopise - ostatní, Jost

Jazyk

čeština

Originální abstrakt

The autofluorescence (AF) derived from the retinal pigment epithelium has the potential to be used as a feature for early glaucoma diagnosis. The aim of this paper is to design and evaluate the method used for semi-automatic segmentation of the zones with increased autofluorescence. A randomized sample of 20 patients (age: 56 +/- 10 years) with open angle glaucoma was used. A new method for semi-automatic detection and segmentation of the zones with a higher level of autofluorescence in the junctional zone of parapapillary atrophy has been evaluated. Good agreement has been observed between manually and semi-automatically segmented zones for most of the images, but higher differences may occur for larger hyperfluorescent regions. The data were evaluated using the limits of agreement, with a 2*sigma border. The described method allows fast and objective evaluation of AF images, preventing undesirable inter-expert variance. A large proportion of AF images could be evaluated successfully by the developed procedure, and the obtained results are comparable to the manual procedure in most cases.

Anglický abstrakt

The autofluorescence (AF) derived from the retinal pigment epithelium has the potential to be used as a feature for early glaucoma diagnosis. The aim of this paper is to design and evaluate the method used for semi-automatic segmentation of the zones with increased autofluorescence. A randomized sample of 20 patients (age: 56 +/- 10 years) with open angle glaucoma was used. A new method for semi-automatic detection and segmentation of the zones with a higher level of autofluorescence in the junctional zone of parapapillary atrophy has been evaluated. Good agreement has been observed between manually and semi-automatically segmented zones for most of the images, but higher differences may occur for larger hyperfluorescent regions. The data were evaluated using the limits of agreement, with a 2*sigma border. The described method allows fast and objective evaluation of AF images, preventing undesirable inter-expert variance. A large proportion of AF images could be evaluated successfully by the developed procedure, and the obtained results are comparable to the manual procedure in most cases.

Klíčová slova

autofluorescence, parapapillary atrophy, glaucoma, image segmentation

Klíčová slova v angličtině

autofluorescence, parapapillary atrophy, glaucoma, image segmentation

Autoři

KOLÁŘ, R.; JAN, J.; LAEMMER, R.; MARDIN, C.

Vydáno

1. 5. 2009

ISSN

0967-3334

Periodikum

PHYSIOLOGICAL MEASUREMENT

Ročník

2009

Číslo

30

Stát

Spojené království Velké Británie a Severního Irska

Strany od

505

Strany do

516

Strany počet

11

URL

https://iopscience.iop.org/article/10.1088/0967-3334/30/5/007

BibTex

@article{BUT48070,
  author="Radim {Kolář} and Jiří {Jan} and Robert {Laemmer} and Christian Y {Mardin}",
  title="The segmentation of zones with increased autofluorescence in the junctional zone of parapapillary atrophy",
  journal="PHYSIOLOGICAL MEASUREMENT",
  year="2009",
  volume="2009",
  number="30",
  pages="505--516",
  issn="0967-3334",
  url="https://iopscience.iop.org/article/10.1088/0967-3334/30/5/007"
}