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Prospective Comparison of Cirrus and Stratus Optical Coherence Tomography for Quantifying Retinal Thickness

American journal of ophthalmology, 2009-02, Vol.147 (2), p.267-275.e2 [Peer Reviewed Journal]

Elsevier Inc. ;2009 Elsevier Inc. ;2009 INIST-CNRS ;ISSN: 0002-9394 ;EISSN: 1879-1891 ;DOI: 10.1016/j.ajo.2008.08.018 ;PMID: 18929353 ;CODEN: AJOPAA

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Title:
Prospective Comparison of Cirrus and Stratus Optical Coherence Tomography for Quantifying Retinal Thickness
Author: Kiernan, Daniel F ; Hariprasad, Seenu M ; Chin, Eric K ; Kiernan, Claire L ; Rago, James ; Mieler, William F
Subjects: Biological and medical sciences ; Clinical medicine ; Clinical trials ; Comparative analysis ; Diagnostic Techniques, Ophthalmological ; Fourier Analysis ; Health Insurance Portability & Accountability Act 1996-US ; Humans ; Macular degeneration ; Macular Edema - diagnosis ; Macular Edema - etiology ; Medical imaging ; Medical sciences ; Miscellaneous ; Ophthalmology ; Pathology ; Prospective Studies ; Retina - pathology ; Retinal Diseases - complications ; Software ; Studies ; Tomography ; Tomography, Optical Coherence - instrumentation ; Tomography, Optical Coherence - methods
Is Part Of: American journal of ophthalmology, 2009-02, Vol.147 (2), p.267-275.e2
Description: Purpose To compare Cirrus Fourier-domain optical coherence tomography (OCT) with Stratus time-domain OCT for imaging retinal diseases and quantifying retinal thickness (RT) of all nine OCT zones, central macular thickness, and average macular thickness in eyes with and without macular edema. Design Prospective comparison between two OCT systems. Methods RT measurements were performed in 120 eyes of 60 patients suspected of having increased retina thickness using both Stratus and Cirrus OCT on the same day. Twenty-one eyes had both 512 × 128 and 200 × 200 Cirrus cube scans done. Results Data from 101 eyes (53 patients) were analyzed; 46 eyes (45.5%) had macular edema on clinical examination (Group 1), whereas 55 eyes (54.4%) had no clinical evidence of macular edema (Group 2). There was modest correlation between all thickness measurements in 909 zones and each group (range of Pearson correlation, 0.51 to 0.89) and average value was significantly greater when measured with Cirrus OCT for all eyes (mean difference, 43.2 μm; P < .0001). There were few measurement differences between different resolution Cirrus cube scans. Conclusions Cirrus OCT measures RT ∼43 μm greater than Stratus OCT, which is likely attributable to Cirrus OCT detection of the outer band of the retinal pigment epithelium vs Stratus OCT detection of the inner/outer segment photoreceptor junction. All zones showed a wide degree of variability in correlation. Both Cirrus cube scans provide similar data. Future studies comparing these systems might consider utilizing average macular thickness values, which reflect macular volume and may provide more consistent measurements.
Publisher: New York, NY: Elsevier Inc
Language: English
Identifier: ISSN: 0002-9394
EISSN: 1879-1891
DOI: 10.1016/j.ajo.2008.08.018
PMID: 18929353
CODEN: AJOPAA
Source: MEDLINE
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Prospective Comparison of Cirrus and Stratus Optical Coherence Tomography for Quantifying Retinal Thickness

Elsevier Inc. ;2009 Elsevier Inc. ;2009 INIST-CNRS ;ISSN: 0002-9394 ;EISSN: 1879-1891 ;DOI: 10.1016/j.ajo.2008.08.018 ;PMID: 18929353 ;CODEN: AJOPAA

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