MEAJO-Middle East African Journal of Ophthalmology. 2012; 19 (4): 392-396
em Inglês
| IMEMR
| ID: emr-151429
ABSTRACT
To determine the effect of software upgrades on retinal nerve fiber layer [RNFL] thickness measurements taken by spectral domain optical coherence tomography [SD-OCT]. Eighty normal eyes [40 patients] were scanned for RNFL thickness measurements using Spectralis [Heidelberg Engineering, Heidelberg, Germany] SD-OCT. Scan analysis was performed using version 4.0 software and then reanalyzed with version 5.1.3. Student paired t testing and Pearson's correlation coefficient were used for statistical analysis. Average and quadrant RNFL thicknesses generated using version 4.0 and 5.1.3 software on Spectralis demonstrated high correlation [r = 0.955-0.998]. Average RNFL thickness using version 4.0 was 0.08micro m thinner than version 5.1.3 [p = 0.409]. Quadrant RNFL differences ranged from -0.26 to +0.97 microm [p = 0.146-0.915]. Segmentation errors were reduced 33% after the upgrade. Minor RNFL thickness changes may occur after software upgrades in Spectralis OCT. The differences did not reach statistical significance but segmentation errors were improved
Buscar no Google
Índice:
IMEMR (Mediterrâneo Oriental)
Idioma:
Inglês
Revista:
Middle East Afr. J. Ophthalmol.
Ano de publicação:
2012
Similares
MEDLINE
...
LILACS
LIS