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Frequency, Type and Cause of Artifacts in Swept-Source and Cirrus HD Optical Coherence Tomography in Cases of Glaucoma and Suspected Glaucoma

 Sang Yeop Lee  ;  Hee Jung Kwon  ;  Hyoung Won Bae  ;  Sang Jin Seo  ;  Yun Ha Lee  ;  Samin Hong  ;  Gong Je Seong  ;  Chan Yun Kim 
 CURRENT EYE RESEARCH, Vol.41(7) : 957-964, 2016 
Journal Title
Issue Date
Adult ; Aged ; Artifacts* ; Female ; Glaucoma/diagnosis* ; Glaucoma/physiopathology ; Humans ; Image Processing, Computer-Assisted* ; Intraocular Pressure/physiology* ; Male ; Middle Aged ; Nerve Fibers/pathology ; Ocular Hypertension/diagnosis* ; Ocular Hypertension/physiopathology ; Optic Disk/pathology ; ROC Curve ; Retinal Ganglion Cells/pathology ; Retrospective Studies ; Tomography, Optical Coherence/methods*
Cirrus HD optical coherence tomography ; comparison of artifact ; optical coherence image artifact ; swept source optical coherence tomography
PURPOSE: To evaluate and compare the frequency, type and cause of imaging artifacts incurred when using swept-source optical coherence tomography (SS OCT) and Cirrus HD OCT in the same patients on the same day.

MATERIALS AND METHODS: From left eye OCT results of 72 patients, disc area and macular area data could be compared between the two types of OCT. For each scan, the final printout report and source data were examined. For comparison between the two types of OCT, only source image data were used because of differences in the final printout report format.

RESULTS: There were no significant differences in the artifact frequencies between the two groups in either area (disc area: 35.9% of SS OCT, 42.2% of Cirrus OCT, p = 0.523; Macular area: 24.2% of SS OCT, 22.7% of Cirrus OCT, p = 1.00). The overall results of artifact comparison between the two types of OCTs also showed no significant differences. Boundary misidentification was the most common type of artifact observed, and ocular pathology was the most common cause of artifact in both types of OCTs. Among ocular pathologies, the epiretinal membrane (ERM) was the most common cause of OCT artifact production in both types of OCTs.

CONCLUSIONS: There was no significant difference in the frequency, type and cause of artifacts between SS OCT and Cirrus HD OCT. Artifacts in OCT can influence the interpretation of OCT results. In particular, ERM around the optic disc could contribute to OCT artifacts and should be considered in glaucoma diagnosis or during patient follow-up using OCT.
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1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Chan Yun(김찬윤) ORCID logo https://orcid.org/0000-0002-8373-9999
Bae, Hyoung Won(배형원) ORCID logo https://orcid.org/0000-0002-8421-5636
Seong, Gong Je(성공제) ORCID logo https://orcid.org/0000-0002-5456-4296
Lee, Sang Yeop(이상엽) ORCID logo https://orcid.org/0000-0002-3834-7953
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