光学相干层析成像旋转失真评价研究  

Study on the Evaluation of Rotational Distortion in Optical Coherence Tomography

作　　者：王浩[1] 孟祥峰[1] 刘艳珍[1] 任海萍[1] 

机构地区：[1]中国食品药品检定研究院光机电室,北京100050

出　　处：《中国医疗设备》2016年第7期26-29,共4页China Medical Devices

基　　金：国家科技支撑计划项目(2015BAI43H00);中国食品药品检定研究院中青年基金项目(2015C02)

摘　　要：光学相干层析成像(OCT)是内窥镜成像领域异军突起的新方向,可以提供高分辨率的三维图像。光纤探头的优化设计,使得OCT可适应多种浅表性疾病诊断的需求,在心血管、消化道、呼吸系统、泌尿系统疾病等方面正在加速临床转化。图像旋转失真是OCT内窥镜的一个共性问题,反映了探头机械设计的质量,对图像的完整性影响很大,目前OCT图像旋转失真并没有国内外标准和测试方法。本文讨论了OCT旋转失真的特征,提出了基于图像的定量评估方法,为完善OCT内窥镜的质量控制提供了有用的参考。Optical coherence tomography（OCT） is an emerging branch of medical endoscopy, which can rapidly acquire high-resolution 3D images. The advancement of OCT catheter design enables OCT for the diagnostics of various diseases near tissue surface. The clinical translation of OCT is accelerating in many fields such as cardiovascular diseases, gastrointestinal diseases, pulmonary diseases and urinary diseases. Rotation distortion（RD） is a common problem with OCT endoscopy, which reveals the mechanical properties of the catheter and may severely deteriorate the integrity of images. Currently, no standard provides definition or testing method for RD. In this paper, the characteristic of RD was discussed and a quantitative method to evaluate RD was proposed. The results provided useful reference for the quality control of OCT endoscopy.

关 键 词：医用内窥镜 光学相干层析成像 旋转失真 图像处理 质量控制 

分 类 号：TH776.1[机械工程—仪器科学与技术] TN247[机械工程—精密仪器及机械]