首页>
外国专利>
Microangiography method and system based on full-space modulation spectrum splitting and angle compounding
Microangiography method and system based on full-space modulation spectrum splitting and angle compounding
展开▼
机译:基于全空间调制谱分裂和角度复合的微血管造影方法和系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
A microangiography method and system based on full-space modulation spectrum splitting and angle compounding is disclosed. Label-free three-dimensional optical coherence tomography angiography is realized by combining the three-dimensional space resolution capability of an optical coherence tomography and the motion recognition capability of a dynamic scattering technology. Probe light of different incident angles is encoded with a transverse scanning modulation spectrum in a spatial frequency domain, incident angle-resolved sub-angiograms which are independent of one another are obtained by splitting the modulation spectrum, and an angiogram with multiple space angles compounded is realized. Conjugate mirror images are removed from a depth (z) domain, a complex-valued OCT interference spectra are reconstructed, the full-space modulation spectrum is obtained in the spatial frequency domain, and the overlap of the modulation spectrum conjugate mirror images is avoided. And the absolute flow velocity of blood flow can be measured through a multi angle-resolved probing technology.
展开▼