Fig. 1. Experimental setup of TBI animal model

Fig. 2. Schematic of terahertz transmission imaging setup

Fig. 3. Experiment pictures. (a) Photograph of TBI rat brain; (b) photograph of sliced TBI rat brain tissue

Fig. 4. HE-stained microscopic images. (a) Normal rat brain tissue; (b) TBI rat brain tissue

Fig. 5. Imaging results of slice. (a) Normal rat brain tissue; (b) TBI rat brain tissue

Fig. 6. Preprocessing of three-dimensional reconstruction based on terahertz wave imaging

Fig. 7. Three-dimensional models in different viewing angles. (a)-(d) TBI rat brain samples; (e)-(h) normal rat brain samples