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光学相干断层扫描在消化系统中的应用进展 被引量:3

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摘要 光学相干断层扫描(optical coherence tomography,OCT)为近年来发展较快的一种新型、高清晰的光学成像技术,成像原理与超声相似,不同之处在于将声波转换为光波,采用波长为750~1300 nm的低能量红外光,通过测量经各组织层折射后的反射光性质和回波延迟时间形成图像[1-2]。OCT具有高分辨率、横断面及层析成像特点,轴 向 分辨率 为10μm,为超声内镜的10~25倍,扫描深度2~3 mm,虽不及超声内镜,
出处 《中华消化内镜杂志》 北大核心 2015年第3期196-198,共3页 Chinese Journal of Digestive Endoscopy
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