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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Zarranz-Ventura, Javier García, Noelia Alvarez, Aurora Moreno-Montañés, Javier Olmo, Natalia |
| Description | Country affiliation: Spain Author Affiliation: Moreno-Montañés J ( Department of Ophthalmology, Clínica Universidad de Navarra, Pamplona, Spain. jmoreno@unav.es) |
| 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. |
| ISSN | 01460404 |
| e-ISSN | 15525783 |
| Journal | Investigative Opthalmology & Visual Science |
| Issue Number | 1 |
| Volume Number | 51 |
| Language | English |
| Publisher | Association for Research in Vision and Ophthalmology |
| Publisher Date | 2010-01-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Glaucoma, Open-angle Diagnosis Nerve Fibers Pathology Optic Disk Optic Nerve Diseases Retinal Ganglion Cells Tomography, Optical Coherence Area Under Curve Gonioscopy Intraocular Pressure Likelihood Functions Prospective Studies Roc Curve Sensitivity And Specificity Instrumentation Vision Disorders Visual Fields Comparative Study Research Support, Non-u.s. Gov't Discipline Ophthalmology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ophthalmology Sensory Systems Cellular and Molecular Neuroscience |
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