Detail publikačního výsledku

Time-resolved quantitative inter-eye comparison of cardiac cycle-induced blood volume changes in the human retina

TORNOW, R.; ODSTRČILÍK, J.; KOLÁŘ, R.

Originální název

Time-resolved quantitative inter-eye comparison of cardiac cycle-induced blood volume changes in the human retina

Anglický název

Time-resolved quantitative inter-eye comparison of cardiac cycle-induced blood volume changes in the human retina

Druh

Článek WoS

Originální abstrakt

We describe a low-cost, easy to use binocular instrument to acquire retinal video sequences of both eyes simultaneously. After image registration, cardiac cycle-induced pulsatile light attenuation changes can be measured quantitatively with high spatial and temporal resolution. Parameters such as amplitude, pulse form, and time shift between light attenuation changes can be calculated and compared between eye sides. Deviation from inter-eye symmetry can be not only an early sign of beginning eye diseases such as glaucoma but also a sign of pathological changes in the carotid arteries; hence, this method can improve the early detection of pathological changes. Important features compared to existing monocular instruments are a narrow band light source with the wavelength close to the peak of the blood extinction, and a proportional relationship of image intensity and light intensity, which are the main requirements for quantitative evaluation.

Anglický abstrakt

We describe a low-cost, easy to use binocular instrument to acquire retinal video sequences of both eyes simultaneously. After image registration, cardiac cycle-induced pulsatile light attenuation changes can be measured quantitatively with high spatial and temporal resolution. Parameters such as amplitude, pulse form, and time shift between light attenuation changes can be calculated and compared between eye sides. Deviation from inter-eye symmetry can be not only an early sign of beginning eye diseases such as glaucoma but also a sign of pathological changes in the carotid arteries; hence, this method can improve the early detection of pathological changes. Important features compared to existing monocular instruments are a narrow band light source with the wavelength close to the peak of the blood extinction, and a proportional relationship of image intensity and light intensity, which are the main requirements for quantitative evaluation.

Klíčová slova

retinal imaging, perfusion, photoplethysmography, image processing

Klíčová slova v angličtině

retinal imaging, perfusion, photoplethysmography, image processing

Autoři

TORNOW, R.; ODSTRČILÍK, J.; KOLÁŘ, R.

Rok RIV

2019

Vydáno

14.11.2018

Nakladatel

Optical Society of America

Místo

USA

ISSN

2156-7085

Periodikum

Biomedical Optics Express

Svazek

9

Číslo

12

Stát

Spojené státy americké

Strany od

6237

Strany do

6254

Strany počet

18

URL

https://www.osapublishing.org/boe/abstract.cfm?uri=boe-9-12-6237

BibTex

@article{BUT151242,
  author="Ralf-Peter {Tornow} and Jan {Odstrčilík} and Radim {Kolář}",
  title="Time-resolved quantitative inter-eye comparison of cardiac cycle-induced blood volume changes in the human retina",
  journal="Biomedical Optics Express",
  year="2018",
  volume="9",
  number="12",
  pages="6237--6254",
  doi="10.1364/BOE.9.006237",
  issn="2156-7085",
  url="https://www.osapublishing.org/boe/abstract.cfm?uri=boe-9-12-6237"
}