First Clinical Application of Low-Cost OCT.
Transl Vis Sci Technol
; 8(3): 61, 2019 May.
Article
em En
| MEDLINE
| ID: mdl-31293815
ABSTRACT
PURPOSE:
We present the design of a new low-cost optical coherence tomography (OCT) system and compare its retinal imaging capabilities to a standard commercial system through a clinical study.METHODS:
A spectral-domain OCT system was designed using various cost-reduction techniques to be low-cost, highly portable, and completely stand-alone. Clinical imaging was performed on 120 eyes of 60 patients (60 eyes of normal volunteers and 60 eyes with retinal disease) using both the low-cost OCT and a Heidelberg Engineering Spectralis OCT. Contrast-to-noise ratio (CNR) was measured from resulting images to determine system performance.RESULTS:
The low-cost OCT system was successfully applied to clinical imaging of the retina. The system offers an axial resolution of 8.0 µm, a lateral resolution of 19.6 µm, and an imaging depth of 2.7 mm for a 6.6-mm field of view in the X and Y directions. Total cost is $5037, a significant size reduction compared to current commercial higher performance systems. Mean CNR value of low-cost OCT images is only 5.6% lower compared to the Heidelberg Spectralis.CONCLUSIONS:
The images captured with the low-cost OCT were of adequate resolution and allowed for clinical diagnostics. It offers comparable performance as a retinal screening tool at a fraction of the cost of current commercial systems. TRANSLATIONAL RELEVANCE Low-cost OCT has the potential to increase access to retinal imaging.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Tipo de estudo:
Health_economic_evaluation
Idioma:
En
Revista:
Transl Vis Sci Technol
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Estados Unidos