In this study, we developed Color Doppler-Optical Coherence Tomography (CD-OCT) system with improved dynamic range of flow velocity. CD-OCT detects sample's motion from phase difference using the basic principles of Spectral Domain-Optical Coherence T...
In this study, we developed Color Doppler-Optical Coherence Tomography (CD-OCT) system with improved dynamic range of flow velocity. CD-OCT detects sample's motion from phase difference using the basic principles of Spectral Domain-Optical Coherence Tomography (SD-OCT). The purpose of detecting motion is for the measurement of bloodstream. Improvement of velocity dynamic range is needed to detect slow bloodstream in animal capillaries. We used method-changing line interval from many A-lines as the system performance will get worse with the use of method-changing line period. The CUDA parallel processing is used to overcome the computational complexity using General Purpose-Graphic Processing Unit (GP-GPU) with multi-threading of CPU. Hence, our employed system can detect slow bloodstream in capillaries without performance degradation.