Clinical Megahertz-OCT for ophthalmic applications (Conference Presentation)
Clinical Megahertz-OCT for ophthalmic applications (Conference Presentation)
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用于眼科应用的临床兆赫兹 OCT（会议演示）
DOI：
10.1117/12.2550134
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
T. Schmoll
中科院分区：
文献类型：
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作者：
M. Niederleithner;A. Britten;L. Ginner;M. Salas;H. Ren;M. Arain;Rick A. Williams;W. Drexler;R. Leitgeb;T. Schmoll
扫描速率高于 1MHz 的可调谐激光源最近已投入商用。当今的商业眼科 OCT 系统使用 100-200kHz 范围内的扫描速率。这些速度更快的激光源可用于显着缩短成像时间或显着增加视场 (FOV)。在本研究中，我们研究了 MHz 速率扫频激光进行 OCT 的临床价值。我们使用扫描速率为 1.7MHz 的频域锁模 (FDML) 激光器实现了多功能眼科 OCT 系统，可满足各种眼科 OCT 成像应用的需求，为宽视场视网膜 OCT 和 OCT 血管造影 (OCTA) 提供大成像深度，视场高达 90 度，以及眼前节成像和脉络膜毛细血管显微 OCTA，重复率超过1kHz。
Tunable laser sources with sweep-rates higher than 1MHz recently became commercially available. Today’s commercial ophthalmic OCT systems use sweep-rates in the 100-200kHz regime. These much faster laser sources can be used to either significantly reduce the imaging time or significantly increase the field of view (FOV). In this study we investigate the clinical value of OCT with MHz-rate swept source lasers. We implemented a versatile ophthalmic OCT system using a Frequency-Domain-Mode-Locked (FDML) laser with a sweep-rate of 1.7MHz, to address a variety of ophthalmic OCT imaging applications, exhibiting large imaging depth for wide field retinal OCT and OCT angiography (OCTA) with a field of view of up to 90 degrees, as well as for anterior segment imaging, and microscopic OCTA of the choriocapillaris with repetition rates of more than 1kHz.