Detail publikace

Photoplethysmographic analysis of retinal videodata based on the Fourier domain approach

KOLÁŘ, R. ODSTRČILÍK, J. TORNOW, R.

Originální název

Photoplethysmographic analysis of retinal videodata based on the Fourier domain approach

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Assessment of retinal blood flow inside the optic nerve head (ONH) and the peripapillary area is an important task in retinal imaging. For this purpose, an experimental binocular video ophthalmoscope that acquires precisely synchronized video sequences of the optic nerve head and peripapillary area from both eyes has been previously developed. It enables to compare specific characteristics of both eyes and efficiently detect the eye asymmetry. In this paper, we describe a novel methodology for the analysis of acquired video data using a photoplethysmographic approach. We describe and calculate the pulsatile attenuation amplitude (PAA) spatial map, which quantifies the maximum relative change of blood volume during a cardiac cycle using a frequency domain approach. We also describe in detail the origin of PAA maps from the fundamental (the first) and the second harmonic component of the pulsatile signal, and we compare the results obtained by time-based and frequency-based approaches. In several cases, we show the advantages and possibilities of this device and the appropriate image analysis approach - fast measurement and comparison of blood flow characteristics of both eyes at a glance, the robustness of this approach, and the possibility of easy detection of asymmetry.

Klíčová slova

retinal imaging; image processing; imaging photoplethysmography

Autoři

KOLÁŘ, R.; ODSTRČILÍK, J.; TORNOW, R.

Vydáno

1. 12. 2021

Nakladatel

Optica Publishing Group

Místo

USA

ISSN

2156-7085

Periodikum

Biomedical Optics Express

Ročník

12

Číslo

12

Stát

Spojené státy americké

Strany od

7405

Strany do

7421

Strany počet

17

URL

https://www.osapublishing.org/boe/fulltext.cfm?uri=boe-12-12-7405

Plný text v Digitální knihovně

http://hdl.handle.net/11012/202282

BibTex

@article{BUT173242,
  author="Radim {Kolář} and Jan {Odstrčilík} and Ralf-Peter {Tornow}",
  title="Photoplethysmographic analysis of retinal videodata based on the Fourier domain approach",
  journal="Biomedical Optics Express",
  year="2021",
  volume="12",
  number="12",
  pages="7405--7421",
  doi="10.1364/BOE.441451",
  issn="2156-7085",
  url="https://www.osapublishing.org/boe/fulltext.cfm?uri=boe-12-12-7405"
}

Dokumenty

boe-12-12-7405-FINAL.pdf