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Cirrus high-definition optical coherence tomography compared with Stratus optical coherence tomography in glaucoma diagnosis.
Invest Ophthalmol Vis Sci. 2010 Jan; 51(1):335-43.IO

Abstract

PURPOSE

To compare the retinal nerve fiber layer (RNFL) evaluation using Cirrus optical coherence tomography (OCT) and Stratus OCT in glaucoma diagnosis.

METHODS

One hundred thirty normal and 86 patients with glaucoma were included in this prospective study. The signal strengths of the OCTs were evaluated. The sensitivities and specificities of global RNFL average thickness were compared in the four quadrants and in each clock hour sector. Receiver operating characteristic (ROC) curves, areas under the ROC (AUC), and the likelihood ratio (LR) were plotted for RNFL thickness. Agreement between the OCTs was calculated by using the Bland-Altman method and kappa (kappa) coefficient.

RESULTS

Twenty-three percent of all cases examined with Stratus OCT and 1.9% examined with Cirrus OCT had a signal strength below 6 (P = 0.01). In cases with signal strengths > or =6, the mean signal strength was higher with Cirrus OCT than with Stratus OCT (P = 0.01). The RNFL measurements by Cirrus were thicker than those of Stratus OCT (P < 0.05). The AUCs were 0.829 for Stratus and 0.837 for Cirrus OCT (P = 0.706) for global RNFL average. LRs were similar in both OCTs in global RNFL classification but varied in quadrants. The widths of the limits of agreement varied between 42.16 and 97.79 microm. There was almost perfect agreement (kappa = 0.82) in the average RNFL classification.

CONCLUSIONS

Cirrus OCT has better scan quality than Stratus OCT, especially in glaucomatous eyes. In cases with good-quality scans, the sensitivity and specificity, and AUCs were similar. The best agreement was in the global average RNFL classification. The widths of limits of agreements exceed the limits of resolution of the OCTs.

Authors+Show Affiliations

Department of Ophthalmology, Clínica Universidad de Navarra, Pamplona, Spain. jmoreno@unav.esNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19737881

Citation

Moreno-Montañés, Javier, et al. "Cirrus High-definition Optical Coherence Tomography Compared With Stratus Optical Coherence Tomography in Glaucoma Diagnosis." Investigative Ophthalmology & Visual Science, vol. 51, no. 1, 2010, pp. 335-43.
Moreno-Montañés J, Olmo N, Alvarez A, et al. Cirrus high-definition optical coherence tomography compared with Stratus optical coherence tomography in glaucoma diagnosis. Invest Ophthalmol Vis Sci. 2010;51(1):335-43.
Moreno-Montañés, J., Olmo, N., Alvarez, A., García, N., & Zarranz-Ventura, J. (2010). Cirrus high-definition optical coherence tomography compared with Stratus optical coherence tomography in glaucoma diagnosis. Investigative Ophthalmology & Visual Science, 51(1), 335-43. https://doi.org/10.1167/iovs.08-2988
Moreno-Montañés J, et al. Cirrus High-definition Optical Coherence Tomography Compared With Stratus Optical Coherence Tomography in Glaucoma Diagnosis. Invest Ophthalmol Vis Sci. 2010;51(1):335-43. PubMed PMID: 19737881.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cirrus high-definition optical coherence tomography compared with Stratus optical coherence tomography in glaucoma diagnosis. AU - Moreno-Montañés,Javier, AU - Olmo,Natalia, AU - Alvarez,Aurora, AU - García,Noelia, AU - Zarranz-Ventura,Javier, Y1 - 2009/09/08/ PY - 2009/9/10/entrez PY - 2009/9/10/pubmed PY - 2010/2/4/medline SP - 335 EP - 43 JF - Investigative ophthalmology & visual science JO - Invest Ophthalmol Vis Sci VL - 51 IS - 1 N2 - PURPOSE: To compare the retinal nerve fiber layer (RNFL) evaluation using Cirrus optical coherence tomography (OCT) and Stratus OCT in glaucoma diagnosis. METHODS: One hundred thirty normal and 86 patients with glaucoma were included in this prospective study. The signal strengths of the OCTs were evaluated. The sensitivities and specificities of global RNFL average thickness were compared in the four quadrants and in each clock hour sector. Receiver operating characteristic (ROC) curves, areas under the ROC (AUC), and the likelihood ratio (LR) were plotted for RNFL thickness. Agreement between the OCTs was calculated by using the Bland-Altman method and kappa (kappa) coefficient. RESULTS: Twenty-three percent of all cases examined with Stratus OCT and 1.9% examined with Cirrus OCT had a signal strength below 6 (P = 0.01). In cases with signal strengths > or =6, the mean signal strength was higher with Cirrus OCT than with Stratus OCT (P = 0.01). The RNFL measurements by Cirrus were thicker than those of Stratus OCT (P < 0.05). The AUCs were 0.829 for Stratus and 0.837 for Cirrus OCT (P = 0.706) for global RNFL average. LRs were similar in both OCTs in global RNFL classification but varied in quadrants. The widths of the limits of agreement varied between 42.16 and 97.79 microm. There was almost perfect agreement (kappa = 0.82) in the average RNFL classification. CONCLUSIONS: Cirrus OCT has better scan quality than Stratus OCT, especially in glaucomatous eyes. In cases with good-quality scans, the sensitivity and specificity, and AUCs were similar. The best agreement was in the global average RNFL classification. The widths of limits of agreements exceed the limits of resolution of the OCTs. SN - 1552-5783 UR - https://www.unboundmedicine.com/medline/citation/19737881/Cirrus_high_definition_optical_coherence_tomography_compared_with_Stratus_optical_coherence_tomography_in_glaucoma_diagnosis_ L2 - https://iovs.arvojournals.org/article.aspx?doi=10.1167/iovs.08-2988 DB - PRIME DP - Unbound Medicine ER -