OCT angiogram of a normal eye illustrating detailed microvasculature in the macula. The foveal avascular zone is seen in the center of the macula. Optical coherence tomography angiography (OCT-A) has emerged as a non-invasive technique for imaging the microvasculature of the retina and the choroid.

2024年9月26日 · Optical coherence tomography (OCT) and optical coherence tomography angiography (OCTA) are non-invasive imaging tests. They use light waves to take cross-section pictures of your retina. With OCT, your ophthalmologist can see each of the retina’s distinctive layers and the optic nerve fiber layer.

Optical coherence tomography angiography (OCTA) [1] [2] [3] [4] is a non-invasive imaging technique based on optical coherence tomography (OCT) developed to visualize vascular networks in the human retina, [4] [5] [6] [7] [8] [9] choroid, [10] …

2019年8月14日 · Optical coherence tomography angiography (OCTA) is an imaging modality which can be applied in ophthalmology to provide detailed visualization of the perfusion of vascular networks in the eye. Compared to previous state of the art dye-based imaging, such as fluorescein angiography, OCTA is non-invasive, time-efficient, and it allows for the ...

2015年4月15日 · Optical coherence tomography angiography (OCTA) is a new non-invasive imaging technique that employs motion contrast imaging to high-resolution volumetric blood flow information generating angiographic images in a matter of seconds.

2017年9月8日 · Optical coherence tomography angiography (OCTA) has emerged as a novel, non-invasive imaging modality that allows the detailed study of flow within the...

oct是眼底疾病重要的影像诊断手段之一，它虽被喻为“眼科ct”、眼底“光学活检”，但它无辐射、无创伤，使得 视网膜 每一层结构如同“千层蛋糕”一样清晰可辨；而octa即oct血流成像则是基于oct技术的进一步拓展应用，能以无创的方式展示眼底各层血流情况 ...

2022年9月27日 · OCTA（OCT angiography，简称OCTA，中文译：眼底相干光层析血管成像术）是一种非侵入性的新型眼底影像检查技术，可高分辨率识别 视网膜脉络膜血流运动信息 ，对活体组织视网膜脉络膜微血管循环成像。在正常视网膜脉络膜血管改变及疾病的管理随访和治疗效果 ...

2024年7月6日 · Optical coherence tomography angiography (OCTA) is an innovative imaging technique that can quickly and non-invasively capture high-resolution images of all the vascular layers of the retina and choroid. The technology was developed in 2005, and utilizes properties of the Doppler signal to visualize blood flow using swept-source OCT (SS-OCT) [1].

2020年3月3日 · 光学相干断层扫描血管成像技术 (Optical Coherence Tomography Angiography, OCTA) 是针对视网膜以及脉络膜各层血管可视化的一种革命性的方法。在过去四年中, 由于各种OCTA设备商业化的可能, OCTA已经应用于眼科肿瘤诊疗的各个方面——从良性恶性肿瘤的的鉴别诊断到辅助性针对治疗后各种并发症如放射性视网膜病变的评估。然而,...