Handheld simultaneous scanning laser ophthalmoscopy and optical coherence tomography system

被引:63
作者
LaRocca, Francesco [1 ]
Nankivil, Derek [1 ]
Farsiu, Sina [1 ,2 ]
Izatt, Joseph A. [1 ,2 ]
机构
[1] Duke Univ, Dept Biomed Engn, Durham, NC 27708 USA
[2] Duke Univ, Med Ctr, Dept Ophthalmol, Durham, NC 27710 USA
来源
BIOMEDICAL OPTICS EXPRESS | 2013年 / 4卷 / 11期
关键词
TARGETED STIMULUS DELIVERY; ADAPTIVE OPTICS; MOTION CORRECTION; CONE PHOTORECEPTORS; IMAGE REGISTRATION; FOVEAL MORPHOLOGY; TRACKING SLO; OCT;
D O I
10.1364/BOE.4.002307
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Scanning laser ophthalmoscopy (SLO) and optical coherence tomography (OCT) are widely used retinal imaging modalities that can assist in the diagnosis of retinal pathologies. The combination of SLO and OCT provides a more comprehensive imaging system and a method to register OCT images to produce motion corrected retinal volumes. While high quality, bench-top SLO-OCT systems have been discussed in the literature and are available commercially, there are currently no handheld designs. We describe the first design and fabrication of a handheld SLO/spectral domain OCT probe. SLO and OCT images were acquired simultaneously with a combined power under the ANSI limit. High signal-to-noise ratio SLO and OCT images were acquired simultaneously from a normal subject with visible motion artifacts. Fully automated motion estimation methods were performed in post-processing to correct for the inter-and intra-frame motion in SLO images and their concurrently acquired OCT volumes. The resulting set of reconstructed SLO images and the OCT volume were without visible motion artifacts. At a reduced field of view, the SLO resolved parafoveal cones without adaptive optics at a retinal eccentricity of 11 in subjects with good ocular optics. This system may be especially useful for imaging young children and subjects with less stable fixation. (C) 2013 Optical Society of America
引用
收藏
页码:2307 / 2321
页数:15
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