The Comparison of Macular Thickness Measurements and Repeatabilities Between Time Domain and Spectral Domain OCT
Journal of the Korean Ophthalmological Society
; : 1050-1059, 2009.
Article
en Ko
| WPRIM
| ID: wpr-94262
Biblioteca responsable:
WPRO
ABSTRACT
PURPOSE: To compare macular thickness measurements obtained from time domain optical coherence tomography (TD-OCT) and 2 spectral domain (SD) OCTs and to evaluate their repeatability and agreement in normal subjects and diabetic macular edema patients. METHODS: Fifty-four healthy, normal subjects and 26 diabetic macular edema patients were participated in this study. In a randomly selected eye from each subject, two serial macular measurements were obtained from TD-OCT (Stratus OCT) and SD-OCTs (Cirrus HD-OCT, Spectralis HRA+OCT) by an experienced technician in random order. Nine areas of macular thickness map and repeatabilities obtained by the 3 OCTs were compared. RESULTS: In relative repeatability, SD-OCT showed better results overall compared to TD-OCT. Macular thickness was greatest in the Spectralis HRA+OCT in both normal subjects and diabetic macular edema patients, followed by Cirrus HD-OCT and Stratus OCT. In normal subjects, regardless of the type of comparison between the machines there was a statistically significant difference in all 9 areas. CONCLUSIONS: While the TD-OCT and the 2 SD-OCTs are reliable for macular thickness measurement, SD-OCT has better measurement repeatability compared with TD-OCT. Because macular measurements obtained from the 3 OCT systems cannot be interchanged, an effort should be made to standardize the measurement of each system.
Palabras clave
Texto completo:
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Índice:
WPRIM
Asunto principal:
Edema Macular
/
Tomografía de Coherencia Óptica
/
Ojo
Límite:
Humans
Idioma:
Ko
Revista:
Journal of the Korean Ophthalmological Society
Año:
2009
Tipo del documento:
Article