Fig. 1. Schematic diagram of iDSCA technology

Fig. 2. Schematic diagram of hardware composition of iDSCA imaging system for detecting rCBF

Fig. 3. Hardware composition and model diagram of phantom velocity experiment. (a) Hardware composition of phantom velocity experiment; (b) phantom model of regional blood flow in cerebral cortex

Fig. 4. Schematic diagram of in vivo experiment process. (a) Measurement mode of in vivo experiment; (b) picture of continuous noninvasive blood pressure monitor; (c) cuff-induced occlusion protocol

Fig. 5. Schematic diagram of iDSCA speckle imaging results of phantom velocity experiment

Fig. 6. Normalized fitting curve of multi-SD analysis varying with flow velocity. (a) Flow contrast; (b) coherence factor; (c) BFI

Fig. 7. Normalized fitting curve of BFI varying with standard flow in multi-TD and multi-SD analysis. (a) SD of 6 mm; (b) SD of 8 mm; (c) SD of 10 mm; (d) SD of 12 mm

Fig. 8. Waveform comparison of BFI and BP signals in time domain and frequency domain. (a) Time domain; (b) frequency domain

Fig. 9. Schematic diagram of BFI signal waveforms in three states in cuff-induced occlusion protocol