![](/images/graphics-bg.png)
Impact of B-Scan Averaging on Spectralis Optical Coherence Tomography Image Quality before and after Cataract Surgery
Joint Authors
Schmidt-Erfurth, Ursula
Waldstein, Sebastian M.
Gerendas, Bianca S.
Philip, Ana-Maria
Podkowinski, Dominika
Simader, Christian
Sharian Varnousfaderani, Ehsan
Bogunovic, Hrvoje
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-05-23
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Background and Objective.
To determine optimal image averaging settings for Spectralis optical coherence tomography (OCT) in patients with and without cataract.
Study Design/Material and Methods.
In a prospective study, the eyes were imaged before and after cataract surgery using seven different image averaging settings.
Image quality was quantitatively evaluated using signal-to-noise ratio, distinction between retinal layer image intensity distributions, and retinal layer segmentation performance.
Measures were compared pre- and postoperatively across different degrees of averaging.
Results.
13 eyes of 13 patients were included and 1092 layer boundaries analyzed.
Preoperatively, increasing image averaging led to a logarithmic growth in all image quality measures up to 96 frames.
Postoperatively, increasing averaging beyond 16 images resulted in a plateau without further benefits to image quality.
Averaging 16 frames postoperatively provided comparable image quality to 96 frames preoperatively.
Conclusion.
In patients with clear media, averaging 16 images provided optimal signal quality.
A further increase in averaging was only beneficial in the eyes with senile cataract.
However, prolonged acquisition time and possible loss of details have to be taken into account.
American Psychological Association (APA)
Podkowinski, Dominika& Sharian Varnousfaderani, Ehsan& Simader, Christian& Bogunovic, Hrvoje& Philip, Ana-Maria& Gerendas, Bianca S.…[et al.]. 2017. Impact of B-Scan Averaging on Spectralis Optical Coherence Tomography Image Quality before and after Cataract Surgery. Journal of Ophthalmology،Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1185433
Modern Language Association (MLA)
Podkowinski, Dominika…[et al.]. Impact of B-Scan Averaging on Spectralis Optical Coherence Tomography Image Quality before and after Cataract Surgery. Journal of Ophthalmology No. 2017 (2017), pp.1-8.
https://search.emarefa.net/detail/BIM-1185433
American Medical Association (AMA)
Podkowinski, Dominika& Sharian Varnousfaderani, Ehsan& Simader, Christian& Bogunovic, Hrvoje& Philip, Ana-Maria& Gerendas, Bianca S.…[et al.]. Impact of B-Scan Averaging on Spectralis Optical Coherence Tomography Image Quality before and after Cataract Surgery. Journal of Ophthalmology. 2017. Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1185433
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1185433